20211454910

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2039501}}^1$

素因数の和:2040499

約数の個数: 16

約数和(自身を含む): 36417347712

約数和(自身を除く): 16205892802

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 9910, 2039501, 4079002, 10197505, 20395010, 2021145491, 4042290982, 10105727455, 20211454910]

約数ペア:

[(1, 20211454910), (2, 10105727455), (5, 4042290982), (10, 2021145491), (991, 20395010), (1982, 10197505), (4955, 4079002), (9910, 2039501)]