21203680

素因数分解:

$2^5\times 5^1\times {\mathrm{132523}}^1$

素因数の和:132538

約数の個数: 24

約数和(自身を含む): 50094072

約数和(自身を除く): 28890392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 132523, 265046, 530092, 662615, 1060184, 1325230, 2120368, 2650460, 4240736, 5300920, 10601840, 21203680]

約数ペア:

[(1, 21203680), (2, 10601840), (4, 5300920), (5, 4240736), (8, 2650460), (10, 2120368), (16, 1325230), (20, 1060184), (32, 662615), (40, 530092), (80, 265046), (160, 132523)]