815121

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:141

約数の個数: 18

約数和(自身を含む): 1232322

約数和(自身を除く): 417201

約数列:

[1, 3, 9, 41, 47, 123, 141, 369, 423, 1927, 2209, 5781, 6627, 17343, 19881, 90569, 271707, 815121]

約数ペア:

[(1, 815121), (3, 271707), (9, 90569), (41, 19881), (47, 17343), (123, 6627), (141, 5781), (369, 2209), (423, 1927)]