1721265

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{97}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 3443328

約数和(自身を除く): 1722063

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 97, 105, 169, 195, 273, 291, 455, 485, 507, 679, 845, 1183, 1261, 1365, 1455, 2037, 2535, 3395, 3549, 3783, 5915, 6305, 8827, 10185, 16393, 17745, 18915, 26481, 44135, 49179, 81965, 114751, 132405, 245895, 344253, 573755, 1721265]

約数ペア:

[(1, 1721265), (3, 573755), (5, 344253), (7, 245895), (13, 132405), (15, 114751), (21, 81965), (35, 49179), (39, 44135), (65, 26481), (91, 18915), (97, 17745), (105, 16393), (169, 10185), (195, 8827), (273, 6305), (291, 5915), (455, 3783), (485, 3549), (507, 3395), (679, 2535), (845, 2037), (1183, 1455), (1261, 1365)]