31531738

素因数分解:

$2^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{20663}}^1$

素因数の和:20781

約数の個数: 16

約数和(自身を含む): 54552960

約数和(自身を除く): 23021222

約数列:

[1, 2, 7, 14, 109, 218, 763, 1526, 20663, 41326, 144641, 289282, 2252267, 4504534, 15765869, 31531738]

約数ペア:

[(1, 31531738), (2, 15765869), (7, 4504534), (14, 2252267), (109, 289282), (218, 144641), (763, 41326), (1526, 20663)]