21269205

素因数分解:

$3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{8011}}^1$

素因数の和:8081

約数の個数: 24

約数和(自身を含む): 37496160

約数和(自身を除く): 16226955

約数列:

[1, 3, 5, 9, 15, 45, 59, 177, 295, 531, 885, 2655, 8011, 24033, 40055, 72099, 120165, 360495, 472649, 1417947, 2363245, 4253841, 7089735, 21269205]

約数ペア:

[(1, 21269205), (3, 7089735), (5, 4253841), (9, 2363245), (15, 1417947), (45, 472649), (59, 360495), (177, 120165), (295, 72099), (531, 40055), (885, 24033), (2655, 8011)]