20765668

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67421}}^1$

素因数の和:67443

約数の個数: 24

約数和(自身を含む): 45307584

約数和(自身を除く): 24541916

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67421, 134842, 269684, 471947, 741631, 943894, 1483262, 1887788, 2966524, 5191417, 10382834, 20765668]

約数ペア:

[(1, 20765668), (2, 10382834), (4, 5191417), (7, 2966524), (11, 1887788), (14, 1483262), (22, 943894), (28, 741631), (44, 471947), (77, 269684), (154, 134842), (308, 67421)]