19227868

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{39727}}^1$

素因数の和:39753

約数の個数: 18

約数和(自身を含む): 36986768

約数和(自身を除く): 17758900

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 39727, 79454, 158908, 436997, 873994, 1747988, 4806967, 9613934, 19227868]

約数ペア:

[(1, 19227868), (2, 9613934), (4, 4806967), (11, 1747988), (22, 873994), (44, 436997), (121, 158908), (242, 79454), (484, 39727)]