18817839

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8011}}^1$

素因数の和:8052

約数の個数: 20

約数和(自身を含む): 29083560

約数和(自身を除く): 10265721

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8011, 24033, 72099, 216297, 232319, 648891, 696957, 2090871, 6272613, 18817839]

約数ペア:

[(1, 18817839), (3, 6272613), (9, 2090871), (27, 696957), (29, 648891), (81, 232319), (87, 216297), (261, 72099), (783, 24033), (2349, 8011)]