20938324

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43261}}^1$

素因数の和:43287

約数の個数: 18

約数和(自身を含む): 40276922

約数和(自身を除く): 19338598

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 43261, 86522, 173044, 475871, 951742, 1903484, 5234581, 10469162, 20938324]

約数ペア:

[(1, 20938324), (2, 10469162), (4, 5234581), (11, 1903484), (22, 951742), (44, 475871), (121, 173044), (242, 86522), (484, 43261)]