55991655

素因数分解:

$3^4\times 5^1\times {\mathrm{138251}}^1$

素因数の和:138268

約数の個数: 20

約数和(自身を含む): 100370952

約数和(自身を除く): 44379297

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 138251, 414753, 691255, 1244259, 2073765, 3732777, 6221295, 11198331, 18663885, 55991655]

約数ペア:

[(1, 55991655), (3, 18663885), (5, 11198331), (9, 6221295), (15, 3732777), (27, 2073765), (45, 1244259), (81, 691255), (135, 414753), (405, 138251)]