20716088

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{42451}}^1$

素因数の和:42518

約数の個数: 16

約数和(自身を含む): 39480360

約数和(自身を除く): 18764272

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 42451, 84902, 169804, 339608, 2589511, 5179022, 10358044, 20716088]

約数ペア:

[(1, 20716088), (2, 10358044), (4, 5179022), (8, 2589511), (61, 339608), (122, 169804), (244, 84902), (488, 42451)]