21613678

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{8011}}^1$

素因数の和:8103

約数の個数: 16

約数和(自身を含む): 34611840

約数和(自身を除く): 12998162

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 8011, 16022, 152209, 304418, 568781, 1137562, 10806839, 21613678]

約数ペア:

[(1, 21613678), (2, 10806839), (19, 1137562), (38, 568781), (71, 304418), (142, 152209), (1349, 16022), (2698, 8011)]