20969956

素因数分解:

$2^2\times 7^1\times {\mathrm{131}}^1\times {\mathrm{5717}}^1$

素因数の和:5859

約数の個数: 24

約数和(自身を含む): 42267456

約数和(自身を除く): 21297500

約数列:

[1, 2, 4, 7, 14, 28, 131, 262, 524, 917, 1834, 3668, 5717, 11434, 22868, 40019, 80038, 160076, 748927, 1497854, 2995708, 5242489, 10484978, 20969956]

約数ペア:

[(1, 20969956), (2, 10484978), (4, 5242489), (7, 2995708), (14, 1497854), (28, 748927), (131, 160076), (262, 80038), (524, 40019), (917, 22868), (1834, 11434), (3668, 5717)]