21100550

素因数分解:

$2^1\times 5^2\times {\mathrm{397}}^1\times {\mathrm{1063}}^1$

素因数の和:1472

約数の個数: 24

約数和(自身を含む): 39382896

約数和(自身を除く): 18282346

約数列:

[1, 2, 5, 10, 25, 50, 397, 794, 1063, 1985, 2126, 3970, 5315, 9925, 10630, 19850, 26575, 53150, 422011, 844022, 2110055, 4220110, 10550275, 21100550]

約数ペア:

[(1, 21100550), (2, 10550275), (5, 4220110), (10, 2110055), (25, 844022), (50, 422011), (397, 53150), (794, 26575), (1063, 19850), (1985, 10630), (2126, 9925), (3970, 5315)]