19810242

素因数分解:

$2^1\times 3^2\times {\mathrm{1100569}}^1$

素因数の和:1100577

約数の個数: 12

約数和(自身を含む): 42922230

約数和(自身を除く): 23111988

約数列:

[1, 2, 3, 6, 9, 18, 1100569, 2201138, 3301707, 6603414, 9905121, 19810242]

約数ペア:

[(1, 19810242), (2, 9905121), (3, 6603414), (6, 3301707), (9, 2201138), (18, 1100569)]