28657647

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{2099}}^1$

素因数の和:2183

約数の個数: 24

約数和(自身を含む): 43570800

約数和(自身を除く): 14913153

約数列:

[1, 3, 9, 37, 41, 111, 123, 333, 369, 1517, 2099, 4551, 6297, 13653, 18891, 77663, 86059, 232989, 258177, 698967, 774531, 3184183, 9552549, 28657647]

約数ペア:

[(1, 28657647), (3, 9552549), (9, 3184183), (37, 774531), (41, 698967), (111, 258177), (123, 232989), (333, 86059), (369, 77663), (1517, 18891), (2099, 13653), (4551, 6297)]