16809687

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1493}}^1$

素因数の和:1644

約数の個数: 20

約数和(自身を含む): 25308360

約数和(自身を除く): 8498673

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 1493, 3753, 4479, 11259, 13437, 40311, 120933, 207527, 622581, 1867743, 5603229, 16809687]

約数ペア:

[(1, 16809687), (3, 5603229), (9, 1867743), (27, 622581), (81, 207527), (139, 120933), (417, 40311), (1251, 13437), (1493, 11259), (3753, 4479)]