30811157

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 36103200

約数和(自身を除く): 5292043

約数列:

[1, 13, 17, 59, 139, 221, 289, 767, 1003, 1807, 2363, 3757, 8201, 13039, 17051, 30719, 40171, 106613, 139417, 221663, 522223, 1812421, 2370089, 30811157]

約数ペア:

[(1, 30811157), (13, 2370089), (17, 1812421), (59, 522223), (139, 221663), (221, 139417), (289, 106613), (767, 40171), (1003, 30719), (1807, 17051), (2363, 13039), (3757, 8201)]