21348315

素因数分解:

$3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{3413}}^1$

素因数の和:3563

約数の個数: 24

約数和(自身を含む): 37280880

約数和(自身を除く): 15932565

約数列:

[1, 3, 5, 9, 15, 45, 139, 417, 695, 1251, 2085, 3413, 6255, 10239, 17065, 30717, 51195, 153585, 474407, 1423221, 2372035, 4269663, 7116105, 21348315]

約数ペア:

[(1, 21348315), (3, 7116105), (5, 4269663), (9, 2372035), (15, 1423221), (45, 474407), (139, 153585), (417, 51195), (695, 30717), (1251, 17065), (2085, 10239), (3413, 6255)]