20658572

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42683}}^1$

素因数の和:42709

約数の個数: 18

約数和(自身を含む): 39738804

約数和(自身を除く): 19080232

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42683, 85366, 170732, 469513, 939026, 1878052, 5164643, 10329286, 20658572]

約数ペア:

[(1, 20658572), (2, 10329286), (4, 5164643), (11, 1878052), (22, 939026), (44, 469513), (121, 170732), (242, 85366), (484, 42683)]