21740037

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{28643}}^1$

素因数の和:28680

約数の個数: 16

約数和(自身を含む): 32997888

約数和(自身を除く): 11257851

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 28643, 85929, 315073, 658789, 945219, 1976367, 7246679, 21740037]

約数ペア:

[(1, 21740037), (3, 7246679), (11, 1976367), (23, 945219), (33, 658789), (69, 315073), (253, 85929), (759, 28643)]