208078403911

素因数分解:

$7^3\times {\mathrm{613}}^1\times {\mathrm{989629}}^1$

素因数の和:990263

約数の個数: 16

約数和(自身を含む): 243053128000

約数和(自身を除く): 34974724089

約数列:

[1, 7, 49, 343, 613, 4291, 30037, 210259, 989629, 6927403, 48491821, 339442747, 606642577, 4246498039, 29725486273, 208078403911]

約数ペア:

[(1, 208078403911), (7, 29725486273), (49, 4246498039), (343, 606642577), (613, 339442747), (4291, 48491821), (30037, 6927403), (210259, 989629)]