20228156

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{389003}}^1$

素因数の和:389020

約数の個数: 12

約数和(自身を含む): 38122392

約数和(自身を除く): 17894236

約数列:

[1, 2, 4, 13, 26, 52, 389003, 778006, 1556012, 5057039, 10114078, 20228156]

約数ペア:

[(1, 20228156), (2, 10114078), (4, 5057039), (13, 1556012), (26, 778006), (52, 389003)]