20509323

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{919}}^1$

素因数の和:1138

約数の個数: 16

約数和(自身を含む): 28174080

約数和(自身を除く): 7664757

約数列:

[1, 3, 43, 129, 173, 519, 919, 2757, 7439, 22317, 39517, 118551, 158987, 476961, 6836441, 20509323]

約数ペア:

[(1, 20509323), (3, 6836441), (43, 476961), (129, 158987), (173, 118551), (519, 39517), (919, 22317), (2757, 7439)]