20912708

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{263}}^1$

素因数の和:563

約数の個数: 24

約数和(自身を含む): 37285248

約数和(自身を除く): 16372540

約数列:

[1, 2, 4, 103, 193, 206, 263, 386, 412, 526, 772, 1052, 19879, 27089, 39758, 50759, 54178, 79516, 101518, 108356, 203036, 5228177, 10456354, 20912708]

約数ペア:

[(1, 20912708), (2, 10456354), (4, 5228177), (103, 203036), (193, 108356), (206, 101518), (263, 79516), (386, 54178), (412, 50759), (526, 39758), (772, 27089), (1052, 19879)]