21425997

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^2$

素因数の和:217

約数の個数: 24

約数和(自身を含む): 30477216

約数和(自身を除く): 9051219

約数列:

[1, 3, 37, 43, 67, 111, 129, 201, 1591, 2479, 2881, 4489, 4773, 7437, 8643, 13467, 106597, 166093, 193027, 319791, 498279, 579081, 7141999, 21425997]

約数ペア:

[(1, 21425997), (3, 7141999), (37, 579081), (43, 498279), (67, 319791), (111, 193027), (129, 166093), (201, 106597), (1591, 13467), (2479, 8643), (2881, 7437), (4489, 4773)]