20988682

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73387}}^1$

素因数の和:73413

約数の個数: 16

約数和(自身を含む): 36987552

約数和(自身を除く): 15998870

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73387, 146774, 807257, 954031, 1614514, 1908062, 10494341, 20988682]

約数ペア:

[(1, 20988682), (2, 10494341), (11, 1908062), (13, 1614514), (22, 954031), (26, 807257), (143, 146774), (286, 73387)]