20019489

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8011}}^1$

素因数の和:8045

約数の個数: 24

約数和(自身を含む): 32881248

約数和(自身を除く): 12861759

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8011, 24033, 56077, 136187, 168231, 392539, 408561, 953309, 1177617, 2859927, 6673163, 20019489]

約数ペア:

[(1, 20019489), (3, 6673163), (7, 2859927), (17, 1177617), (21, 953309), (49, 408561), (51, 392539), (119, 168231), (147, 136187), (357, 56077), (833, 24033), (2499, 8011)]