21724360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{77587}}^1$

素因数の和:77605

約数の個数: 32

約数和(自身を含む): 55863360

約数和(自身を除く): 34139000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 77587, 155174, 310348, 387935, 543109, 620696, 775870, 1086218, 1551740, 2172436, 2715545, 3103480, 4344872, 5431090, 10862180, 21724360]

約数ペア:

[(1, 21724360), (2, 10862180), (4, 5431090), (5, 4344872), (7, 3103480), (8, 2715545), (10, 2172436), (14, 1551740), (20, 1086218), (28, 775870), (35, 620696), (40, 543109), (56, 387935), (70, 310348), (140, 155174), (280, 77587)]