21540272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{3571}}^1$

素因数の和:3621

約数の個数: 40

約数和(自身を含む): 46507440

約数和(自身を除く): 24967168

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 116, 208, 232, 377, 464, 754, 1508, 3016, 3571, 6032, 7142, 14284, 28568, 46423, 57136, 92846, 103559, 185692, 207118, 371384, 414236, 742768, 828472, 1346267, 1656944, 2692534, 5385068, 10770136, 21540272]

約数ペア:

[(1, 21540272), (2, 10770136), (4, 5385068), (8, 2692534), (13, 1656944), (16, 1346267), (26, 828472), (29, 742768), (52, 414236), (58, 371384), (104, 207118), (116, 185692), (208, 103559), (232, 92846), (377, 57136), (464, 46423), (754, 28568), (1508, 14284), (3016, 7142), (3571, 6032)]