21080494040

素因数分解:

$2^3\times 5^1\times {\mathrm{527012351}}^1$

素因数の和:527012362

約数の個数: 16

約数和(自身を含む): 47431111680

約数和(自身を除く): 26350617640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 527012351, 1054024702, 2108049404, 2635061755, 4216098808, 5270123510, 10540247020, 21080494040]

約数ペア:

[(1, 21080494040), (2, 10540247020), (4, 5270123510), (5, 4216098808), (8, 2635061755), (10, 2108049404), (20, 1054024702), (40, 527012351)]