21000844820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24419587}}^1$

素因数の和:24419639

約数の個数: 24

約数和(自身を含む): 45127398624

約数和(自身を除く): 24126553804

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24419587, 48839174, 97678348, 122097935, 244195870, 488391740, 1050042241, 2100084482, 4200168964, 5250211205, 10500422410, 21000844820]

約数ペア:

[(1, 21000844820), (2, 10500422410), (4, 5250211205), (5, 4200168964), (10, 2100084482), (20, 1050042241), (43, 488391740), (86, 244195870), (172, 122097935), (215, 97678348), (430, 48839174), (860, 24419587)]