20565409319

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{750809}}^1$

素因数の和:750879

約数の個数: 24

約数和(自身を含む): 26362440720

約数和(自身を除く): 5797031401

約数列:

[1, 7, 13, 43, 49, 91, 301, 559, 637, 2107, 3913, 27391, 750809, 5255663, 9760517, 32284787, 36789641, 68323619, 225993509, 419702231, 478265333, 1581954563, 2937915617, 20565409319]

約数ペア:

[(1, 20565409319), (7, 2937915617), (13, 1581954563), (43, 478265333), (49, 419702231), (91, 225993509), (301, 68323619), (559, 36789641), (637, 32284787), (2107, 9760517), (3913, 5255663), (27391, 750809)]