Divisors of 2989: All 6 Factors
Quick Answer
2989 has 6 divisors (factors): 1, 7, 49, 61, 427, 2989.
Sum: 3534.
Divisors (Factors) Calculator
Use the calculator above to find all divisors (also called factors) of any positive integer up to 4,782,969. Beyond the divisor list, this tool also shows divisor pairs, the sum and count of divisors, prime factorization, and number properties (prime, perfect square, perfect number).
All Divisors of 2989
The number 2989 has 6 divisors:
1, 7, 49, 61, 427, 2989
Divisor Pairs of 2989
Each pair multiplies to 2989:
| Factor 1 | × | Factor 2 | = | Product |
|---|---|---|---|---|
| 1 | × | 2989 | = | 2989 |
| 7 | × | 427 | = | 2989 |
| 49 | × | 61 | = | 2989 |
Number of Divisors
The number 2989 has 6 divisors, written as τ(2989) = 6 in number theory.
Sum of Divisors
σ(2989) = 1 + 7 + 49 + 61 + 427 + 2989 = 3534
Prime Factorization of 2989
Properties of 2989
- 2989 is composite.
- 2989 is not a perfect square.
- Number of divisors: 6.
- Sum of divisors: 3534.
Common Divisors with Another Number?
Looking for the divisors that 2989 shares with another number? Use our Greatest Common Factor (GCF) calculator — it finds all common divisors and the largest one.
Step-by-Step: How to Find the Divisors of 2989
An efficient way to find divisors uses the complementary pair trick: check each integer i from 1 to √2989 ≈ 54.67. If i divides 2989, then both i and 2989/i are divisors.
- 1 divides 2989 (2989 ÷ 1 = 2989) → pair (1, 2989)
- 7 divides 2989 (2989 ÷ 7 = 427) → pair (7, 427)
- 49 divides 2989 (2989 ÷ 49 = 61) → pair (49, 61)
- Collect all unique values: {1, 7, 49, 61, 427, 2989} — total 6 divisors.
- Sum: 1 + 7 + 49 + 61 + 427 + 2989 = 3534.
Nearby Examples
Related Operations for 2989
- Multiples of 2989 — "outward" complement; M is a multiple of 2989 ⇔ 2989 is a divisor of M
- 2989 Prime Factorization — decompose into prime building blocks
- Find GCF of 2989 and another number
- Find LCM of 2989 and another number
- Is 2989 a perfect square? (odd divisor count ⇔ yes)
See also our tables of divisors:
What Is a Divisor?
A divisor (also called a factor) of a positive integer n is any positive integer d such that n ÷ d has no remainder. In other words, d divides n evenly.
Every positive integer n has at least two divisors: 1 and n itself (with 1 being the trivial case of having only itself). Numbers with exactly 2 divisors are prime; numbers with 3 or more divisors are composite.
Why use this calculator? Beyond just listing divisors, this tool computes the sum σ(n), the count τ(n), prime factorization, divisor pairs (useful for visual learners and factoring problems), and detects whether n is a prime, a perfect square, or a perfect number.
Divisors Calculation Examples
Find all divisors of these numbers:
Related Calculators
- Multiples of a Number — "outward" complement
- Prime Factorization — product of prime divisors
- Greatest Common Factor (GCF) — largest common divisor of 2+ numbers
- Least Common Multiple (LCM) — smallest common multiple
- Is N a Perfect Square? — odd divisor count check