19493870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{177217}}^1$

素因数の和:177235

約数の個数: 16

約数和(自身を含む): 38279088

約数和(自身を除く): 18785218

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 177217, 354434, 886085, 1772170, 1949387, 3898774, 9746935, 19493870]

約数ペア:

[(1, 19493870), (2, 9746935), (5, 3898774), (10, 1949387), (11, 1772170), (22, 886085), (55, 354434), (110, 177217)]