19314869

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{103}}^1$

素因数の和:249

約数の個数: 24

約数和(自身を含む): 23474880

約数和(自身を除く): 4160011

約数列:

[1, 7, 43, 49, 89, 103, 301, 623, 721, 2107, 3827, 4361, 4429, 5047, 9167, 26789, 31003, 64169, 187523, 217021, 394181, 449183, 2759267, 19314869]

約数ペア:

[(1, 19314869), (7, 2759267), (43, 449183), (49, 394181), (89, 217021), (103, 187523), (301, 64169), (623, 31003), (721, 26789), (2107, 9167), (3827, 5047), (4361, 4429)]