18779691

素因数分解:

$3^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2971}}^1$

素因数の和:3031

約数の個数: 24

約数和(自身を含む): 29815104

約数和(自身を除く): 11035413

約数列:

[1, 3, 7, 21, 43, 49, 129, 147, 301, 903, 2107, 2971, 6321, 8913, 20797, 62391, 127753, 145579, 383259, 436737, 894271, 2682813, 6259897, 18779691]

約数ペア:

[(1, 18779691), (3, 6259897), (7, 2682813), (21, 894271), (43, 436737), (49, 383259), (129, 145579), (147, 127753), (301, 62391), (903, 20797), (2107, 8913), (2971, 6321)]