21918560

素因数分解:

$2^5\times 5^1\times {\mathrm{136991}}^1$

素因数の和:137006

約数の個数: 24

約数和(自身を含む): 51782976

約数和(自身を除く): 29864416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136991, 273982, 547964, 684955, 1095928, 1369910, 2191856, 2739820, 4383712, 5479640, 10959280, 21918560]

約数ペア:

[(1, 21918560), (2, 10959280), (4, 5479640), (5, 4383712), (8, 2739820), (10, 2191856), (16, 1369910), (20, 1095928), (32, 684955), (40, 547964), (80, 273982), (160, 136991)]