20127783

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1181}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 31772160

約数和(自身を除く): 11644377

約数列:

[1, 3, 13, 19, 23, 39, 57, 69, 247, 299, 437, 741, 897, 1181, 1311, 3543, 5681, 15353, 17043, 22439, 27163, 46059, 67317, 81489, 291707, 353119, 516097, 875121, 1059357, 1548291, 6709261, 20127783]

約数ペア:

[(1, 20127783), (3, 6709261), (13, 1548291), (19, 1059357), (23, 875121), (39, 516097), (57, 353119), (69, 291707), (247, 81489), (299, 67317), (437, 46059), (741, 27163), (897, 22439), (1181, 17043), (1311, 15353), (3543, 5681)]