20145027

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{3187}}^1$

素因数の和:3247

約数の個数: 24

約数和(自身を含む): 31982016

約数和(自身を除く): 11836989

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 3187, 6321, 9561, 22309, 66927, 137041, 156163, 411123, 468489, 959287, 2877861, 6715009, 20145027]

約数ペア:

[(1, 20145027), (3, 6715009), (7, 2877861), (21, 959287), (43, 468489), (49, 411123), (129, 156163), (147, 137041), (301, 66927), (903, 22309), (2107, 9561), (3187, 6321)]