19040084

素因数分解:

$2^2\times 7^1\times {\mathrm{680003}}^1$

素因数の和:680014

約数の個数: 12

約数和(自身を含む): 38080224

約数和(自身を除く): 19040140

約数列:

[1, 2, 4, 7, 14, 28, 680003, 1360006, 2720012, 4760021, 9520042, 19040084]

約数ペア:

[(1, 19040084), (2, 9520042), (4, 4760021), (7, 2720012), (14, 1360006), (28, 680003)]