18311909

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1459}}^1$

素因数の和:1640

約数の個数: 16

約数和(自身を含む): 22986240

約数和(自身を除く): 4674331

約数列:

[1, 7, 11, 77, 163, 1141, 1459, 1793, 10213, 12551, 16049, 112343, 237817, 1664719, 2615987, 18311909]

約数ペア:

[(1, 18311909), (7, 2615987), (11, 1664719), (77, 237817), (163, 112343), (1141, 16049), (1459, 12551), (1793, 10213)]