21894550

素因数分解:

$2^1\times 5^2\times {\mathrm{397}}^1\times {\mathrm{1103}}^1$

素因数の和:1512

約数の個数: 24

約数和(自身を含む): 40863456

約数和(自身を除く): 18968906

約数列:

[1, 2, 5, 10, 25, 50, 397, 794, 1103, 1985, 2206, 3970, 5515, 9925, 11030, 19850, 27575, 55150, 437891, 875782, 2189455, 4378910, 10947275, 21894550]

約数ペア:

[(1, 21894550), (2, 10947275), (5, 4378910), (10, 2189455), (25, 875782), (50, 437891), (397, 55150), (794, 27575), (1103, 19850), (1985, 11030), (2206, 9925), (3970, 5515)]