1640667069

素因数分解:

$3^4\times {\mathrm{1229}}^1\times {\mathrm{16481}}^1$

素因数の和:17722

約数の個数: 20

約数和(自身を含む): 2453016060

約数和(自身を除く): 812348991

約数列:

[1, 3, 9, 27, 81, 1229, 3687, 11061, 16481, 33183, 49443, 99549, 148329, 444987, 1334961, 20255149, 60765447, 182296341, 546889023, 1640667069]

約数ペア:

[(1, 1640667069), (3, 546889023), (9, 182296341), (27, 60765447), (81, 20255149), (1229, 1334961), (3687, 444987), (11061, 148329), (16481, 99549), (33183, 49443)]