20979044

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{127921}}^1$

素因数の和:127966

約数の個数: 12

約数和(自身を含む): 37609068

約数和(自身を除く): 16630024

約数列:

[1, 2, 4, 41, 82, 164, 127921, 255842, 511684, 5244761, 10489522, 20979044]

約数ペア:

[(1, 20979044), (2, 10489522), (4, 5244761), (41, 511684), (82, 255842), (164, 127921)]