21170485

素因数分解:

$5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{5653}}^1$

素因数の和:5772

約数の個数: 16

約数和(自身を含む): 29310336

約数和(自身を除く): 8139851

約数列:

[1, 5, 7, 35, 107, 535, 749, 3745, 5653, 28265, 39571, 197855, 604871, 3024355, 4234097, 21170485]

約数ペア:

[(1, 21170485), (5, 4234097), (7, 3024355), (35, 604871), (107, 197855), (535, 39571), (749, 28265), (3745, 5653)]