16663661

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 21288960

約数和(自身を除く): 4625299

約数列:

[1, 7, 23, 29, 43, 83, 161, 203, 301, 581, 667, 989, 1247, 1909, 2407, 3569, 4669, 6923, 8729, 13363, 16849, 24983, 28681, 55361, 82087, 103501, 200767, 387527, 574609, 724507, 2380523, 16663661]

約数ペア:

[(1, 16663661), (7, 2380523), (23, 724507), (29, 574609), (43, 387527), (83, 200767), (161, 103501), (203, 82087), (301, 55361), (581, 28681), (667, 24983), (989, 16849), (1247, 13363), (1909, 8729), (2407, 6923), (3569, 4669)]