25274151

素因数分解:

$3^2\times 7^2\times {\mathrm{223}}^1\times {\mathrm{257}}^1$

素因数の和:500

約数の個数: 36

約数和(自身を含む): 42823872

約数和(自身を除く): 17549721

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 223, 257, 441, 669, 771, 1561, 1799, 2007, 2313, 4683, 5397, 10927, 12593, 14049, 16191, 32781, 37779, 57311, 98343, 113337, 171933, 401177, 515799, 1203531, 2808239, 3610593, 8424717, 25274151]

約数ペア:

[(1, 25274151), (3, 8424717), (7, 3610593), (9, 2808239), (21, 1203531), (49, 515799), (63, 401177), (147, 171933), (223, 113337), (257, 98343), (441, 57311), (669, 37779), (771, 32781), (1561, 16191), (1799, 14049), (2007, 12593), (2313, 10927), (4683, 5397)]