20187335

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19889}}^1$

素因数の和:19930

約数の個数: 16

約数和(自身を含む): 28641600

約数和(自身を除く): 8454265

約数列:

[1, 5, 7, 29, 35, 145, 203, 1015, 19889, 99445, 139223, 576781, 696115, 2883905, 4037467, 20187335]

約数ペア:

[(1, 20187335), (5, 4037467), (7, 2883905), (29, 696115), (35, 576781), (145, 139223), (203, 99445), (1015, 19889)]