209938389

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{30047}}^1$

素因数の和:30204

約数の個数: 16

約数和(自身を含む): 298556928

約数和(自身を除く): 88618539

約数列:

[1, 3, 17, 51, 137, 411, 2329, 6987, 30047, 90141, 510799, 1532397, 4116439, 12349317, 69979463, 209938389]

約数ペア:

[(1, 209938389), (3, 69979463), (17, 12349317), (51, 4116439), (137, 1532397), (411, 510799), (2329, 90141), (6987, 30047)]