389108447

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{367}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 490635264

約数和(自身を除く): 101526817

約数列:

[1, 7, 13, 61, 91, 191, 367, 427, 793, 1337, 2483, 2569, 4771, 5551, 11651, 17381, 22387, 33397, 70097, 81557, 151463, 156709, 291031, 490679, 911261, 1060241, 2037217, 4275917, 6378827, 29931419, 55586921, 389108447]

約数ペア:

[(1, 389108447), (7, 55586921), (13, 29931419), (61, 6378827), (91, 4275917), (191, 2037217), (367, 1060241), (427, 911261), (793, 490679), (1337, 291031), (2483, 156709), (2569, 151463), (4771, 81557), (5551, 70097), (11651, 33397), (17381, 22387)]