20213842

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12941}}^1$

素因数の和:13025

約数の個数: 16

約数和(自身を含む): 33545664

約数和(自身を除く): 13331822

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12941, 25882, 142351, 284702, 918811, 1837622, 10106921, 20213842]

約数ペア:

[(1, 20213842), (2, 10106921), (11, 1837622), (22, 918811), (71, 284702), (142, 142351), (781, 25882), (1562, 12941)]