21943280

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{4649}}^1$

素因数の和:4721

約数の個数: 40

約数和(自身を含む): 51894000

約数和(自身を除く): 29950720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2360, 4649, 4720, 9298, 18596, 23245, 37192, 46490, 74384, 92980, 185960, 274291, 371920, 548582, 1097164, 1371455, 2194328, 2742910, 4388656, 5485820, 10971640, 21943280]

約数ペア:

[(1, 21943280), (2, 10971640), (4, 5485820), (5, 4388656), (8, 2742910), (10, 2194328), (16, 1371455), (20, 1097164), (40, 548582), (59, 371920), (80, 274291), (118, 185960), (236, 92980), (295, 74384), (472, 46490), (590, 37192), (944, 23245), (1180, 18596), (2360, 9298), (4649, 4720)]