18981026

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{919}}^1$

素因数の和:1393

約数の個数: 16

約数和(自身を含む): 29808000

約数和(自身を除く): 10826974

約数列:

[1, 2, 23, 46, 449, 898, 919, 1838, 10327, 20654, 21137, 42274, 412631, 825262, 9490513, 18981026]

約数ペア:

[(1, 18981026), (2, 9490513), (23, 825262), (46, 412631), (449, 42274), (898, 21137), (919, 20654), (1838, 10327)]