123138639

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{4261}}^1$

素因数の和:4312

約数の個数: 36

約数和(自身を含む): 202785960

約数和(自身を除く): 79647321

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 169, 171, 247, 507, 741, 1521, 2223, 3211, 4261, 9633, 12783, 28899, 38349, 55393, 80959, 166179, 242877, 498537, 720109, 728631, 1052467, 2160327, 3157401, 6480981, 9472203, 13682071, 41046213, 123138639]

約数ペア:

[(1, 123138639), (3, 41046213), (9, 13682071), (13, 9472203), (19, 6480981), (39, 3157401), (57, 2160327), (117, 1052467), (169, 728631), (171, 720109), (247, 498537), (507, 242877), (741, 166179), (1521, 80959), (2223, 55393), (3211, 38349), (4261, 28899), (9633, 12783)]