21572360

素因数分解:

$2^3\times 5^1\times {\mathrm{539309}}^1$

素因数の和:539320

約数の個数: 16

約数和(自身を含む): 48537900

約数和(自身を除く): 26965540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 539309, 1078618, 2157236, 2696545, 4314472, 5393090, 10786180, 21572360]

約数ペア:

[(1, 21572360), (2, 10786180), (4, 5393090), (5, 4314472), (8, 2696545), (10, 2157236), (20, 1078618), (40, 539309)]