397320511

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{7103}}^1$

素因数の和:7302

約数の個数: 16

約数和(自身を含む): 465113088

約数和(自身を除く): 67792577

約数列:

[1, 7, 61, 131, 427, 917, 7103, 7991, 49721, 55937, 433283, 930493, 3032981, 6513451, 56760073, 397320511]

約数ペア:

[(1, 397320511), (7, 56760073), (61, 6513451), (131, 3032981), (427, 930493), (917, 433283), (7103, 55937), (7991, 49721)]