18109755

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{359}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 33696000

約数和(自身を除く): 15586245

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 59, 95, 171, 177, 285, 295, 359, 531, 855, 885, 1077, 1121, 1795, 2655, 3231, 3363, 5385, 5605, 6821, 10089, 16155, 16815, 20463, 21181, 34105, 50445, 61389, 63543, 102315, 105905, 190629, 306945, 317715, 402439, 953145, 1207317, 2012195, 3621951, 6036585, 18109755]

約数ペア:

[(1, 18109755), (3, 6036585), (5, 3621951), (9, 2012195), (15, 1207317), (19, 953145), (45, 402439), (57, 317715), (59, 306945), (95, 190629), (171, 105905), (177, 102315), (285, 63543), (295, 61389), (359, 50445), (531, 34105), (855, 21181), (885, 20463), (1077, 16815), (1121, 16155), (1795, 10089), (2655, 6821), (3231, 5605), (3363, 5385)]