18438357

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2917}}^1$

素因数の和:2977

約数の個数: 24

約数和(自身を含む): 29273376

約数和(自身を除く): 10835019

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 2917, 6321, 8751, 20419, 61257, 125431, 142933, 376293, 428799, 878017, 2634051, 6146119, 18438357]

約数ペア:

[(1, 18438357), (3, 6146119), (7, 2634051), (21, 878017), (43, 428799), (49, 376293), (129, 142933), (147, 125431), (301, 61257), (903, 20419), (2107, 8751), (2917, 6321)]