28678167

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26777}}^1$

素因数の和:26807

約数の個数: 24

約数和(自身を含む): 50128416

約数和(自身を除く): 21450249

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26777, 80331, 187439, 240993, 455209, 562317, 1365627, 1686951, 3186463, 4096881, 9559389, 28678167]

約数ペア:

[(1, 28678167), (3, 9559389), (7, 4096881), (9, 3186463), (17, 1686951), (21, 1365627), (51, 562317), (63, 455209), (119, 240993), (153, 187439), (357, 80331), (1071, 26777)]