21728432

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{123457}}^1$

素因数の和:123476

約数の個数: 20

約数和(自身を含む): 45926376

約数和(自身を除く): 24197944

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 123457, 246914, 493828, 987656, 1358027, 1975312, 2716054, 5432108, 10864216, 21728432]

約数ペア:

[(1, 21728432), (2, 10864216), (4, 5432108), (8, 2716054), (11, 1975312), (16, 1358027), (22, 987656), (44, 493828), (88, 246914), (176, 123457)]