20720843

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3083}}^1$

素因数の和:3154

約数の個数: 16

約数和(自身を含む): 24869376

約数和(自身を除く): 4148533

約数列:

[1, 11, 13, 47, 143, 517, 611, 3083, 6721, 33913, 40079, 144901, 440869, 1593911, 1883713, 20720843]

約数ペア:

[(1, 20720843), (11, 1883713), (13, 1593911), (47, 440869), (143, 144901), (517, 40079), (611, 33913), (3083, 6721)]