521036217

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{6883}}^1$

素因数の和:7549

約数の個数: 24

約数和(自身を含む): 811871424

約数和(自身を除く): 290835207

約数列:

[1, 3, 9, 13, 39, 117, 647, 1941, 5823, 6883, 8411, 20649, 25233, 61947, 75699, 89479, 268437, 805311, 4453301, 13359903, 40079709, 57892913, 173678739, 521036217]

約数ペア:

[(1, 521036217), (3, 173678739), (9, 57892913), (13, 40079709), (39, 13359903), (117, 4453301), (647, 805311), (1941, 268437), (5823, 89479), (6883, 75699), (8411, 61947), (20649, 25233)]