81716894

素因数分解:

$2^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{18413}}^1$

素因数の和:18739

約数の個数: 16

約数和(自身を含む): 140535648

約数和(自身を除く): 58818754

約数列:

[1, 2, 7, 14, 317, 634, 2219, 4438, 18413, 36826, 128891, 257782, 5836921, 11673842, 40858447, 81716894]

約数ペア:

[(1, 81716894), (2, 40858447), (7, 11673842), (14, 5836921), (317, 257782), (634, 128891), (2219, 36826), (4438, 18413)]