20557564

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{1217}}^1$

素因数の和:1365

約数の個数: 24

約数和(自身を含む): 37241568

約数和(自身を除く): 16684004

約数列:

[1, 2, 4, 41, 82, 103, 164, 206, 412, 1217, 2434, 4223, 4868, 8446, 16892, 49897, 99794, 125351, 199588, 250702, 501404, 5139391, 10278782, 20557564]

約数ペア:

[(1, 20557564), (2, 10278782), (4, 5139391), (41, 501404), (82, 250702), (103, 199588), (164, 125351), (206, 99794), (412, 49897), (1217, 16892), (2434, 8446), (4223, 4868)]