156720873

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{691}}^1$

素因数の和:909

約数の個数: 32

約数和(自身を含む): 231183360

約数和(自身を除く): 74462487

約数列:

[1, 3, 19, 23, 57, 69, 173, 437, 519, 691, 1311, 2073, 3287, 3979, 9861, 11937, 13129, 15893, 39387, 47679, 75601, 119543, 226803, 301967, 358629, 905901, 2271317, 2749489, 6813951, 8248467, 52240291, 156720873]

約数ペア:

[(1, 156720873), (3, 52240291), (19, 8248467), (23, 6813951), (57, 2749489), (69, 2271317), (173, 905901), (437, 358629), (519, 301967), (691, 226803), (1311, 119543), (2073, 75601), (3287, 47679), (3979, 39387), (9861, 15893), (11937, 13129)]