21044667

素因数分解:

$3^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{599}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 32832000

約数和(自身を除く): 11787333

約数列:

[1, 3, 7, 21, 49, 147, 239, 599, 717, 1673, 1797, 4193, 5019, 11711, 12579, 29351, 35133, 88053, 143161, 429483, 1002127, 3006381, 7014889, 21044667]

約数ペア:

[(1, 21044667), (3, 7014889), (7, 3006381), (21, 1002127), (49, 429483), (147, 143161), (239, 88053), (599, 35133), (717, 29351), (1673, 12579), (1797, 11711), (4193, 5019)]