870867781

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{19801}}^1$

素因数の和:19972

約数の個数: 16

約数和(自身を含む): 1021466368

約数和(自身を除く): 150598587

約数列:

[1, 7, 61, 103, 427, 721, 6283, 19801, 43981, 138607, 1207861, 2039503, 8455027, 14276521, 124409683, 870867781]

約数ペア:

[(1, 870867781), (7, 124409683), (61, 14276521), (103, 8455027), (427, 2039503), (721, 1207861), (6283, 138607), (19801, 43981)]