20975838

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{268921}}^1$

素因数の和:268939

約数の個数: 16

約数和(自身を含む): 45178896

約数和(自身を除く): 24203058

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 268921, 537842, 806763, 1613526, 3495973, 6991946, 10487919, 20975838]

約数ペア:

[(1, 20975838), (2, 10487919), (3, 6991946), (6, 3495973), (13, 1613526), (26, 806763), (39, 537842), (78, 268921)]