207910815

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1980103}}^1$

素因数の和:1980118

約数の個数: 16

約数和(自身を含む): 380179968

約数和(自身を除く): 172269153

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1980103, 5940309, 9900515, 13860721, 29701545, 41582163, 69303605, 207910815]

約数ペア:

[(1, 207910815), (3, 69303605), (5, 41582163), (7, 29701545), (15, 13860721), (21, 9900515), (35, 5940309), (105, 1980103)]