Factors of 3681

3, 409. As a product: 3^2 × 409.

The factors of 3681 are 1, 3, 9, 409, 1227, 3681. It has 6 factors.

Factors of 3681

Pick any whole number from 1 to 10,000.

3681 = 3^{2} \times 409

How to work it out

1
A factor of 3681 is a whole number that divides it with nothing left over. You only need to test the numbers up to √3681 ≈ 60.67; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 6 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$3681 = 3^{2} \times 409$
4
Add all the factors: 1 + 3 + 9 + 409 + 1227 + 3681 = 5330. Without 3681 itself that is 1649, so 3681 is a deficient number.

LaTeX source of the formulas on this page

\[ 3681 = 3^{2} \times 409 \]

What are the factors of 3681?

The factors of 3681 are 1, 3, 9, 409, 1227, 3681. It has 6 factors.

What are the prime factors of 3681?

3, 409. As a product: $3^{2}$ × 409.

How many factors does 3681 have?

3681 has 6 factors (3 factor pairs).

What is the sum of the factors of 3681?

5330.

Is 3681 a prime number?

No. It is divisible by 3, so 3681 = 3 × 1227.