21559846

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139999}}^1$

素因数の和:140019

約数の個数: 16

約数和(自身を含む): 40320000

約数和(自身を除く): 18760154

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139999, 279998, 979993, 1539989, 1959986, 3079978, 10779923, 21559846]

約数ペア:

[(1, 21559846), (2, 10779923), (7, 3079978), (11, 1959986), (14, 1539989), (22, 979993), (77, 279998), (154, 139999)]