21185660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{36527}}^1$

素因数の和:36565

約数の個数: 24

約数和(自身を含む): 46025280

約数和(自身を除く): 24839620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 36527, 73054, 146108, 182635, 365270, 730540, 1059283, 2118566, 4237132, 5296415, 10592830, 21185660]

約数ペア:

[(1, 21185660), (2, 10592830), (4, 5296415), (5, 4237132), (10, 2118566), (20, 1059283), (29, 730540), (58, 365270), (116, 182635), (145, 146108), (290, 73054), (580, 36527)]