28857717

素因数分解:

$3^2\times 7^2\times {\mathrm{65437}}^1$

素因数の和:65457

約数の個数: 18

約数和(自身を含む): 48489558

約数和(自身を除く): 19631841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65437, 196311, 458059, 588933, 1374177, 3206413, 4122531, 9619239, 28857717]

約数ペア:

[(1, 28857717), (3, 9619239), (7, 4122531), (9, 3206413), (21, 1374177), (49, 588933), (63, 458059), (147, 196311), (441, 65437)]