21790629

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{11927}}^1$

素因数の和:11969

約数の個数: 24

約数和(自身を含む): 37215360

約数和(自身を除く): 15424731

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 11927, 35781, 83489, 107343, 250467, 345883, 751401, 1037649, 2421181, 3112947, 7263543, 21790629]

約数ペア:

[(1, 21790629), (3, 7263543), (7, 3112947), (9, 2421181), (21, 1037649), (29, 751401), (63, 345883), (87, 250467), (203, 107343), (261, 83489), (609, 35781), (1827, 11927)]