217906

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1$

素因数の和:78

約数の個数: 24

約数和(自身を含む): 386820

約数和(自身を除く): 168914

約数列:

[1, 2, 13, 17, 26, 29, 34, 58, 221, 289, 377, 442, 493, 578, 754, 986, 3757, 6409, 7514, 8381, 12818, 16762, 108953, 217906]

約数ペア:

[(1, 217906), (2, 108953), (13, 16762), (17, 12818), (26, 8381), (29, 7514), (34, 6409), (58, 3757), (221, 986), (289, 754), (377, 578), (442, 493)]