21218559842

素因数分解:

$2^1\times {\mathrm{1153}}^1\times {\mathrm{2551}}^1\times {\mathrm{3607}}^1$

素因数の和:7313

約数の個数: 16

約数和(自身を含む): 31876766592

約数和(自身を除く): 10658206750

約数列:

[1, 2, 1153, 2306, 2551, 3607, 5102, 7214, 2941303, 4158871, 5882606, 8317742, 9201457, 18402914, 10609279921, 21218559842]

約数ペア:

[(1, 21218559842), (2, 10609279921), (1153, 18402914), (2306, 9201457), (2551, 8317742), (3607, 5882606), (5102, 4158871), (7214, 2941303)]