21915570

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{10289}}^1$

素因数の和:10370

約数の個数: 32

約数和(自身を含む): 53343360

約数和(自身を除く): 31427790

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 71, 142, 213, 355, 426, 710, 1065, 2130, 10289, 20578, 30867, 51445, 61734, 102890, 154335, 308670, 730519, 1461038, 2191557, 3652595, 4383114, 7305190, 10957785, 21915570]

約数ペア:

[(1, 21915570), (2, 10957785), (3, 7305190), (5, 4383114), (6, 3652595), (10, 2191557), (15, 1461038), (30, 730519), (71, 308670), (142, 154335), (213, 102890), (355, 61734), (426, 51445), (710, 30867), (1065, 20578), (2130, 10289)]