20845768

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{19891}}^1$

素因数の和:20028

約数の個数: 16

約数和(自身を含む): 39386160

約数和(自身を除く): 18540392

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 19891, 39782, 79564, 159128, 2605721, 5211442, 10422884, 20845768]

約数ペア:

[(1, 20845768), (2, 10422884), (4, 5211442), (8, 2605721), (131, 159128), (262, 79564), (524, 39782), (1048, 19891)]