66871287

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{25889}}^1$

素因数の和:25943

約数の個数: 24

約数和(自身を含む): 113087520

約数和(自身を除く): 46216233

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 25889, 77667, 181223, 233001, 543669, 1061449, 1631007, 3184347, 7430143, 9553041, 22290429, 66871287]

約数ペア:

[(1, 66871287), (3, 22290429), (7, 9553041), (9, 7430143), (21, 3184347), (41, 1631007), (63, 1061449), (123, 543669), (287, 233001), (369, 181223), (861, 77667), (2583, 25889)]