18157020217

素因数分解:

$7^3\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{18451}}^1$

素因数の和:18642

約数の個数: 32

約数和(自身を含む): 22437632000

約数和(自身を除く): 4280611783

約数列:

[1, 7, 19, 49, 133, 151, 343, 931, 1057, 2869, 6517, 7399, 18451, 20083, 51793, 129157, 140581, 350569, 904099, 984067, 2453983, 2786101, 6328693, 17177881, 19502707, 52935919, 120245167, 136518949, 370551433, 955632643, 2593860031, 18157020217]

約数ペア:

[(1, 18157020217), (7, 2593860031), (19, 955632643), (49, 370551433), (133, 136518949), (151, 120245167), (343, 52935919), (931, 19502707), (1057, 17177881), (2869, 6328693), (6517, 2786101), (7399, 2453983), (18451, 984067), (20083, 904099), (51793, 350569), (129157, 140581)]