31125717

素因数分解:

$3^2\times 7^1\times {\mathrm{557}}^1\times {\mathrm{887}}^1$

素因数の和:1457

約数の個数: 24

約数和(自身を含む): 51532416

約数和(自身を除く): 20406699

約数列:

[1, 3, 7, 9, 21, 63, 557, 887, 1671, 2661, 3899, 5013, 6209, 7983, 11697, 18627, 35091, 55881, 494059, 1482177, 3458413, 4446531, 10375239, 31125717]

約数ペア:

[(1, 31125717), (3, 10375239), (7, 4446531), (9, 3458413), (21, 1482177), (63, 494059), (557, 55881), (887, 35091), (1671, 18627), (2661, 11697), (3899, 7983), (5013, 6209)]