21241312

素因数分解:

$2^5\times {\mathrm{43}}^2\times {\mathrm{359}}^1$

素因数の和:455

約数の個数: 36

約数和(自身を含む): 42933240

約数和(自身を除く): 21691928

約数列:

[1, 2, 4, 8, 16, 32, 43, 86, 172, 344, 359, 688, 718, 1376, 1436, 1849, 2872, 3698, 5744, 7396, 11488, 14792, 15437, 29584, 30874, 59168, 61748, 123496, 246992, 493984, 663791, 1327582, 2655164, 5310328, 10620656, 21241312]

約数ペア:

[(1, 21241312), (2, 10620656), (4, 5310328), (8, 2655164), (16, 1327582), (32, 663791), (43, 493984), (86, 246992), (172, 123496), (344, 61748), (359, 59168), (688, 30874), (718, 29584), (1376, 15437), (1436, 14792), (1849, 11488), (2872, 7396), (3698, 5744)]