551468883

素因数分解:

$3^1\times 7^4\times {\mathrm{76561}}^1$

素因数の和:76592

約数の個数: 20

約数和(自身を含む): 857800648

約数和(自身を除く): 306331765

約数列:

[1, 3, 7, 21, 49, 147, 343, 1029, 2401, 7203, 76561, 229683, 535927, 1607781, 3751489, 11254467, 26260423, 78781269, 183822961, 551468883]

約数ペア:

[(1, 551468883), (3, 183822961), (7, 78781269), (21, 26260423), (49, 11254467), (147, 3751489), (343, 1607781), (1029, 535927), (2401, 229683), (7203, 76561)]