201520215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{344479}}^1$

素因数の和:344503

約数の個数: 24

約数和(自身を含む): 376172160

約数和(自身を除く): 174651945

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 344479, 1033437, 1722395, 3100311, 4478227, 5167185, 13434681, 15501555, 22391135, 40304043, 67173405, 201520215]

約数ペア:

[(1, 201520215), (3, 67173405), (5, 40304043), (9, 22391135), (13, 15501555), (15, 13434681), (39, 5167185), (45, 4478227), (65, 3100311), (117, 1722395), (195, 1033437), (585, 344479)]