21765887

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8011}}^1$

素因数の和:8054

約数の個数: 16

約数和(自身を含む): 26920320

約数和(自身を除く): 5154433

約数列:

[1, 11, 13, 19, 143, 209, 247, 2717, 8011, 88121, 104143, 152209, 1145573, 1674299, 1978717, 21765887]

約数ペア:

[(1, 21765887), (11, 1978717), (13, 1674299), (19, 1145573), (143, 152209), (209, 104143), (247, 88121), (2717, 8011)]