21483567

素因数分解:

$3^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{3187}}^1$

素因数の和:3307

約数の個数: 24

約数和(自身を含む): 35807616

約数和(自身を除く): 14324049

約数列:

[1, 3, 7, 9, 21, 63, 107, 321, 749, 963, 2247, 3187, 6741, 9561, 22309, 28683, 66927, 200781, 341009, 1023027, 2387063, 3069081, 7161189, 21483567]

約数ペア:

[(1, 21483567), (3, 7161189), (7, 3069081), (9, 2387063), (21, 1023027), (63, 341009), (107, 200781), (321, 66927), (749, 28683), (963, 22309), (2247, 9561), (3187, 6741)]