231492009

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{648437}}^1$

素因数の和:648464

約数の個数: 16

約数和(自身を含む): 373500288

約数和(自身を除く): 142008279

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 648437, 1945311, 4539059, 11023429, 13617177, 33070287, 77164003, 231492009]

約数ペア:

[(1, 231492009), (3, 77164003), (7, 33070287), (17, 13617177), (21, 11023429), (51, 4539059), (119, 1945311), (357, 648437)]