21560360

素因数分解:

$2^3\times 5^1\times {\mathrm{539009}}^1$

素因数の和:539020

約数の個数: 16

約数和(自身を含む): 48510900

約数和(自身を除く): 26950540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 539009, 1078018, 2156036, 2695045, 4312072, 5390090, 10780180, 21560360]

約数ペア:

[(1, 21560360), (2, 10780180), (4, 5390090), (5, 4312072), (8, 2695045), (10, 2156036), (20, 1078018), (40, 539009)]