7989891

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 13827744

約数和(自身を除く): 5837853

約数列:

[1, 3, 7, 13, 21, 37, 39, 49, 91, 111, 113, 147, 259, 273, 339, 481, 637, 777, 791, 1443, 1469, 1813, 1911, 2373, 3367, 4181, 4407, 5439, 5537, 10101, 10283, 12543, 16611, 23569, 29267, 30849, 54353, 70707, 71981, 87801, 163059, 204869, 215943, 380471, 614607, 1141413, 2663297, 7989891]

約数ペア:

[(1, 7989891), (3, 2663297), (7, 1141413), (13, 614607), (21, 380471), (37, 215943), (39, 204869), (49, 163059), (91, 87801), (111, 71981), (113, 70707), (147, 54353), (259, 30849), (273, 29267), (339, 23569), (481, 16611), (637, 12543), (777, 10283), (791, 10101), (1443, 5537), (1469, 5439), (1813, 4407), (1911, 4181), (2373, 3367)]