20618774

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{6841}}^1$

素因数の和:6991

約数の個数: 16

約数和(自身を含む): 33991056

約数和(自身を除く): 13372282

約数列:

[1, 2, 11, 22, 137, 274, 1507, 3014, 6841, 13682, 75251, 150502, 937217, 1874434, 10309387, 20618774]

約数ペア:

[(1, 20618774), (2, 10309387), (11, 1874434), (22, 937217), (137, 150502), (274, 75251), (1507, 13682), (3014, 6841)]