20649604892

素因数分解:

$2^2\times 7^2\times {\mathrm{105355127}}^1$

素因数の和:105355145

約数の個数: 18

約数和(自身を含む): 42036696072

約数和(自身を除く): 21387091180

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 105355127, 210710254, 421420508, 737485889, 1474971778, 2949943556, 5162401223, 10324802446, 20649604892]

約数ペア:

[(1, 20649604892), (2, 10324802446), (4, 5162401223), (7, 2949943556), (14, 1474971778), (28, 737485889), (49, 421420508), (98, 210710254), (196, 105355127)]