18975879

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2053}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 29906240

約数和(自身を除く): 10930361

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 2053, 3081, 6159, 9243, 18477, 26689, 80067, 162187, 240201, 486561, 1459683, 2108431, 6325293, 18975879]

約数ペア:

[(1, 18975879), (3, 6325293), (9, 2108431), (13, 1459683), (39, 486561), (79, 240201), (117, 162187), (237, 80067), (711, 26689), (1027, 18477), (2053, 9243), (3081, 6159)]