20905027

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^2$

素因数の和:195

約数の個数: 24

約数和(自身を含む): 25769520

約数和(自身を除く): 4864493

約数列:

[1, 11, 13, 29, 71, 143, 319, 377, 781, 923, 2059, 4147, 5041, 10153, 22649, 26767, 55451, 65533, 146189, 294437, 720863, 1608079, 1900457, 20905027]

約数ペア:

[(1, 20905027), (11, 1900457), (13, 1608079), (29, 720863), (71, 294437), (143, 146189), (319, 65533), (377, 55451), (781, 26767), (923, 22649), (2059, 10153), (4147, 5041)]