28880061

素因数分解:

$3^1\times 7^2\times {\mathrm{223}}^1\times {\mathrm{881}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 45045504

約数和(自身を除く): 16165443

約数列:

[1, 3, 7, 21, 49, 147, 223, 669, 881, 1561, 2643, 4683, 6167, 10927, 18501, 32781, 43169, 129507, 196463, 589389, 1375241, 4125723, 9626687, 28880061]

約数ペア:

[(1, 28880061), (3, 9626687), (7, 4125723), (21, 1375241), (49, 589389), (147, 196463), (223, 129507), (669, 43169), (881, 32781), (1561, 18501), (2643, 10927), (4683, 6167)]