31105529

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{20107}}^1$

素因数の和:20144

約数の個数: 16

約数和(自身を含む): 40537728

約数和(自身を除く): 9432199

約数列:

[1, 7, 13, 17, 91, 119, 221, 1547, 20107, 140749, 261391, 341819, 1829737, 2392733, 4443647, 31105529]

約数ペア:

[(1, 31105529), (7, 4443647), (13, 2392733), (17, 1829737), (91, 341819), (119, 261391), (221, 140749), (1547, 20107)]