1689.0000000

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{14197}}^1$

素因数の和:14224

約数の個数: 16

約数和(自身を含む): 8178048

約数和(自身を除く): 3109719

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 14197, 42591, 99379, 241349, 298137, 724047, 1689443, 5068329]

約数ペア:

[(1, 5068329), (3, 1689443), (7, 724047), (17, 298137), (21, 241349), (51, 99379), (119, 42591), (357, 14197)]