201991518

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^1\times {\mathrm{660103}}^1$

素因数の和:660128

約数の個数: 24

約数和(自身を含む): 463393008

約数和(自身を除く): 261401490

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306, 660103, 1320206, 1980309, 3960618, 5940927, 11221751, 11881854, 22443502, 33665253, 67330506, 100995759, 201991518]

約数ペア:

[(1, 201991518), (2, 100995759), (3, 67330506), (6, 33665253), (9, 22443502), (17, 11881854), (18, 11221751), (34, 5940927), (51, 3960618), (102, 1980309), (153, 1320206), (306, 660103)]