21000273865

素因数分解:

$5^1\times {\mathrm{757}}^1\times {\mathrm{1523}}^1\times {\mathrm{3643}}^1$

素因数の和:5928

約数の個数: 16

約数和(自身を含む): 25257117888

約数和(自身を除く): 4256844023

約数列:

[1, 5, 757, 1523, 3643, 3785, 7615, 18215, 1152911, 2757751, 5548289, 5764555, 13788755, 27741445, 4200054773, 21000273865]

約数ペア:

[(1, 21000273865), (5, 4200054773), (757, 27741445), (1523, 13788755), (3643, 5764555), (3785, 5548289), (7615, 2757751), (18215, 1152911)]