21311580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{355193}}^1$

素因数の和:355205

約数の個数: 24

約数和(自身を含む): 59672592

約数和(自身を除く): 38361012

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 355193, 710386, 1065579, 1420772, 1775965, 2131158, 3551930, 4262316, 5327895, 7103860, 10655790, 21311580]

約数ペア:

[(1, 21311580), (2, 10655790), (3, 7103860), (4, 5327895), (5, 4262316), (6, 3551930), (10, 2131158), (12, 1775965), (15, 1420772), (20, 1065579), (30, 710386), (60, 355193)]