28126287

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{10889}}^1$

素因数の和:10943

約数の個数: 24

約数和(自身を含む): 47567520

約数和(自身を除く): 19441233

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 10889, 32667, 76223, 98001, 228669, 446449, 686007, 1339347, 3125143, 4018041, 9375429, 28126287]

約数ペア:

[(1, 28126287), (3, 9375429), (7, 4018041), (9, 3125143), (21, 1339347), (41, 686007), (63, 446449), (123, 228669), (287, 98001), (369, 76223), (861, 32667), (2583, 10889)]