20743665

素因数分解:

$3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{9949}}^1$

素因数の和:10096

約数の個数: 16

約数和(自身を含む): 33432000

約数和(自身を除く): 12688335

約数列:

[1, 3, 5, 15, 139, 417, 695, 2085, 9949, 29847, 49745, 149235, 1382911, 4148733, 6914555, 20743665]

約数ペア:

[(1, 20743665), (3, 6914555), (5, 4148733), (15, 1382911), (139, 149235), (417, 49745), (695, 29847), (2085, 9949)]