21611860

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{10099}}^1$

素因数の和:10215

約数の個数: 24

約数和(自身を含む): 45813600

約数和(自身を除く): 24201740

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 10099, 20198, 40396, 50495, 100990, 201980, 1080593, 2161186, 4322372, 5402965, 10805930, 21611860]

約数ペア:

[(1, 21611860), (2, 10805930), (4, 5402965), (5, 4322372), (10, 2161186), (20, 1080593), (107, 201980), (214, 100990), (428, 50495), (535, 40396), (1070, 20198), (2140, 10099)]