21717550

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{4217}}^1$

素因数の和:4332

約数の個数: 24

約数和(自身を含む): 40796496

約数和(自身を除く): 19078946

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 515, 1030, 2575, 4217, 5150, 8434, 21085, 42170, 105425, 210850, 434351, 868702, 2171755, 4343510, 10858775, 21717550]

約数ペア:

[(1, 21717550), (2, 10858775), (5, 4343510), (10, 2171755), (25, 868702), (50, 434351), (103, 210850), (206, 105425), (515, 42170), (1030, 21085), (2575, 8434), (4217, 5150)]