649122561

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{11959}}^1$

素因数の和:12165

約数の個数: 24

約数和(自身を含む): 968951360

約数和(自身を除く): 319828799

約数列:

[1, 3, 9, 37, 111, 163, 333, 489, 1467, 6031, 11959, 18093, 35877, 54279, 107631, 442483, 1327449, 1949317, 3982347, 5847951, 17543853, 72124729, 216374187, 649122561]

約数ペア:

[(1, 649122561), (3, 216374187), (9, 72124729), (37, 17543853), (111, 5847951), (163, 3982347), (333, 1949317), (489, 1327449), (1467, 442483), (6031, 107631), (11959, 54279), (18093, 35877)]