21056686

素因数分解:

$2^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{7793}}^1$

素因数の和:7995

約数の個数: 16

約数和(自身を含む): 36288864

約数和(自身を除く): 15232178

約数列:

[1, 2, 7, 14, 193, 386, 1351, 2702, 7793, 15586, 54551, 109102, 1504049, 3008098, 10528343, 21056686]

約数ペア:

[(1, 21056686), (2, 10528343), (7, 3008098), (14, 1504049), (193, 109102), (386, 54551), (1351, 15586), (2702, 7793)]