18686734

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{20717}}^1$

素因数の和:20771

約数の個数: 16

約数和(自身を含む): 31325616

約数和(自身を除く): 12638882

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 20717, 41434, 227887, 455774, 849397, 1698794, 9343367, 18686734]

約数ペア:

[(1, 18686734), (2, 9343367), (11, 1698794), (22, 849397), (41, 455774), (82, 227887), (451, 41434), (902, 20717)]