208897605

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{663167}}^1$

素因数の和:663185

約数の個数: 24

約数和(自身を含む): 413816832

約数和(自身を除く): 204919227

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 663167, 1989501, 3315835, 4642169, 5968503, 9947505, 13926507, 23210845, 29842515, 41779521, 69632535, 208897605]

約数ペア:

[(1, 208897605), (3, 69632535), (5, 41779521), (7, 29842515), (9, 23210845), (15, 13926507), (21, 9947505), (35, 5968503), (45, 4642169), (63, 3315835), (105, 1989501), (315, 663167)]