205215257

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{26801}}^1$

素因数の和:26864

約数の個数: 16

約数和(自身を含む): 240145920

約数和(自身を除く): 34930663

約数列:

[1, 13, 19, 31, 247, 403, 589, 7657, 26801, 348413, 509219, 830831, 6619847, 10800803, 15785789, 205215257]

約数ペア:

[(1, 205215257), (13, 15785789), (19, 10800803), (31, 6619847), (247, 830831), (403, 509219), (589, 348413), (7657, 26801)]