218310587

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^2\times {\mathrm{127}}^1$

素因数の和:311

約数の個数: 24

約数和(自身を含む): 251314176

約数和(自身を除く): 33003589

約数列:

[1, 11, 31, 71, 127, 341, 781, 1397, 2201, 3937, 5041, 9017, 24211, 43307, 55451, 99187, 156271, 279527, 640207, 1718981, 3074797, 7042277, 19846417, 218310587]

約数ペア:

[(1, 218310587), (11, 19846417), (31, 7042277), (71, 3074797), (127, 1718981), (341, 640207), (781, 279527), (1397, 156271), (2201, 99187), (3937, 55451), (5041, 43307), (9017, 24211)]