20575289

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{1789}}^1$

素因数の和:1880

約数の個数: 16

約数和(自身を含む): 24744960

約数和(自身を除く): 4169671

約数列:

[1, 7, 31, 53, 217, 371, 1643, 1789, 11501, 12523, 55459, 94817, 388213, 663719, 2939327, 20575289]

約数ペア:

[(1, 20575289), (7, 2939327), (31, 663719), (53, 388213), (217, 94817), (371, 55459), (1643, 12523), (1789, 11501)]