21802490

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{75181}}^1$

素因数の和:75217

約数の個数: 16

約数和(自身を含む): 40598280

約数和(自身を除く): 18795790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 75181, 150362, 375905, 751810, 2180249, 4360498, 10901245, 21802490]

約数ペア:

[(1, 21802490), (2, 10901245), (5, 4360498), (10, 2180249), (29, 751810), (58, 375905), (145, 150362), (290, 75181)]