18311937

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2897}}^1$

素因数の和:2957

約数の個数: 24

約数和(自身を含む): 29072736

約数和(自身を除く): 10760799

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 2897, 6321, 8691, 20279, 60837, 124571, 141953, 373713, 425859, 871997, 2615991, 6103979, 18311937]

約数ペア:

[(1, 18311937), (3, 6103979), (7, 2615991), (21, 871997), (43, 425859), (49, 373713), (129, 141953), (147, 124571), (301, 60837), (903, 20279), (2107, 8691), (2897, 6321)]