21000559491

素因数分解:

$3^2\times {\mathrm{241}}^1\times {\mathrm{9682139}}^1$

素因数の和:9682386

約数の個数: 12

約数和(自身を含む): 30460012440

約数和(自身を除く): 9459452949

約数列:

[1, 3, 9, 241, 723, 2169, 9682139, 29046417, 87139251, 2333395499, 7000186497, 21000559491]

約数ペア:

[(1, 21000559491), (3, 7000186497), (9, 2333395499), (241, 87139251), (723, 29046417), (2169, 9682139)]