18128817

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{16927}}^1$

素因数の和:16957

約数の個数: 24

約数和(自身を含む): 31689216

約数和(自身を除く): 13560399

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 16927, 50781, 118489, 152343, 287759, 355467, 863277, 1066401, 2014313, 2589831, 6042939, 18128817]

約数ペア:

[(1, 18128817), (3, 6042939), (7, 2589831), (9, 2014313), (17, 1066401), (21, 863277), (51, 355467), (63, 287759), (119, 152343), (153, 118489), (357, 50781), (1071, 16927)]