19979434

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{8011}}^1$

素因数の和:8085

約数の個数: 16

約数和(自身を含む): 31727520

約数和(自身を除く): 11748086

約数列:

[1, 2, 29, 43, 58, 86, 1247, 2494, 8011, 16022, 232319, 344473, 464638, 688946, 9989717, 19979434]

約数ペア:

[(1, 19979434), (2, 9989717), (29, 688946), (43, 464638), (58, 344473), (86, 232319), (1247, 16022), (2494, 8011)]