1617751521

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{77713}}^1$

素因数の和:77982

約数の個数: 20

約数和(自身を含む): 2426075652

約数和(自身を除く): 808324131

約数列:

[1, 3, 9, 27, 81, 257, 771, 2313, 6939, 20817, 77713, 233139, 699417, 2098251, 6294753, 19972241, 59916723, 179750169, 539250507, 1617751521]

約数ペア:

[(1, 1617751521), (3, 539250507), (9, 179750169), (27, 59916723), (81, 19972241), (257, 6294753), (771, 2098251), (2313, 699417), (6939, 233139), (20817, 77713)]