19180028

素因数分解:

$2^2\times 7^1\times {\mathrm{685001}}^1$

素因数の和:685012

約数の個数: 12

約数和(自身を含む): 38360112

約数和(自身を除く): 19180084

約数列:

[1, 2, 4, 7, 14, 28, 685001, 1370002, 2740004, 4795007, 9590014, 19180028]

約数ペア:

[(1, 19180028), (2, 9590014), (4, 4795007), (7, 2740004), (14, 1370002), (28, 685001)]