18760028

素因数分解:

$2^2\times 7^1\times {\mathrm{670001}}^1$

素因数の和:670012

約数の個数: 12

約数和(自身を含む): 37520112

約数和(自身を除く): 18760084

約数列:

[1, 2, 4, 7, 14, 28, 670001, 1340002, 2680004, 4690007, 9380014, 18760028]

約数ペア:

[(1, 18760028), (2, 9380014), (4, 4690007), (7, 2680004), (14, 1340002), (28, 670001)]