31689359

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:255

約数の個数: 24

約数和(自身を含む): 36892800

約数和(自身を除く): 5203441

約数列:

[1, 13, 19, 71, 139, 169, 247, 923, 1349, 1807, 2641, 3211, 9869, 11999, 17537, 23491, 34333, 128297, 187511, 227981, 446329, 1667861, 2437643, 31689359]

約数ペア:

[(1, 31689359), (13, 2437643), (19, 1667861), (71, 446329), (139, 227981), (169, 187511), (247, 128297), (923, 34333), (1349, 23491), (1807, 17537), (2641, 11999), (3211, 9869)]