17990778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1\times {\mathrm{877}}^1$

素因数の和:1158

約数の個数: 32

約数和(自身を含む): 38941056

約数和(自身を除く): 20950278

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 263, 526, 789, 877, 1578, 1754, 2631, 3419, 5262, 6838, 10257, 11401, 20514, 22802, 34203, 68406, 230651, 461302, 691953, 1383906, 2998463, 5996926, 8995389, 17990778]

約数ペア:

[(1, 17990778), (2, 8995389), (3, 5996926), (6, 2998463), (13, 1383906), (26, 691953), (39, 461302), (78, 230651), (263, 68406), (526, 34203), (789, 22802), (877, 20514), (1578, 11401), (1754, 10257), (2631, 6838), (3419, 5262)]