13204665

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 24884496

約数和(自身を除く): 11679831

約数列:

[1, 3, 5, 9, 15, 17, 41, 45, 51, 85, 123, 153, 205, 255, 369, 421, 615, 697, 765, 1263, 1845, 2091, 2105, 3485, 3789, 6273, 6315, 7157, 10455, 17261, 18945, 21471, 31365, 35785, 51783, 64413, 86305, 107355, 155349, 258915, 293437, 322065, 776745, 880311, 1467185, 2640933, 4401555, 13204665]

約数ペア:

[(1, 13204665), (3, 4401555), (5, 2640933), (9, 1467185), (15, 880311), (17, 776745), (41, 322065), (45, 293437), (51, 258915), (85, 155349), (123, 107355), (153, 86305), (205, 64413), (255, 51783), (369, 35785), (421, 31365), (615, 21471), (697, 18945), (765, 17261), (1263, 10455), (1845, 7157), (2091, 6315), (2105, 6273), (3485, 3789)]