21530660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{13627}}^1$

素因数の和:13715

約数の個数: 24

約数和(自身を含む): 45790080

約数和(自身を除く): 24259420

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 13627, 27254, 54508, 68135, 136270, 272540, 1076533, 2153066, 4306132, 5382665, 10765330, 21530660]

約数ペア:

[(1, 21530660), (2, 10765330), (4, 5382665), (5, 4306132), (10, 2153066), (20, 1076533), (79, 272540), (158, 136270), (316, 68135), (395, 54508), (790, 27254), (1580, 13627)]