668761849

素因数分解:

$7^3\times {\mathrm{61}}^1\times {\mathrm{31963}}^1$

素因数の和:32045

約数の個数: 16

約数和(自身を含む): 792707200

約数和(自身を除く): 123945351

約数列:

[1, 7, 49, 61, 343, 427, 2989, 20923, 31963, 223741, 1566187, 1949743, 10963309, 13648201, 95537407, 668761849]

約数ペア:

[(1, 668761849), (7, 95537407), (49, 13648201), (61, 10963309), (343, 1949743), (427, 1566187), (2989, 223741), (20923, 31963)]