21705672

素因数分解:

$2^3\times 3^1\times {\mathrm{457}}^1\times {\mathrm{1979}}^1$

素因数の和:2445

約数の個数: 32

約数和(自身を含む): 54410400

約数和(自身を除く): 32704728

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 457, 914, 1371, 1828, 1979, 2742, 3656, 3958, 5484, 5937, 7916, 10968, 11874, 15832, 23748, 47496, 904403, 1808806, 2713209, 3617612, 5426418, 7235224, 10852836, 21705672]

約数ペア:

[(1, 21705672), (2, 10852836), (3, 7235224), (4, 5426418), (6, 3617612), (8, 2713209), (12, 1808806), (24, 904403), (457, 47496), (914, 23748), (1371, 15832), (1828, 11874), (1979, 10968), (2742, 7916), (3656, 5937), (3958, 5484)]