19308247

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{2789}}^1$

素因数の和:2862

約数の個数: 16

約数和(自身を含む): 23569920

約数和(自身を除く): 4261673

約数列:

[1, 7, 23, 43, 161, 301, 989, 2789, 6923, 19523, 64147, 119927, 449029, 839489, 2758321, 19308247]

約数ペア:

[(1, 19308247), (7, 2758321), (23, 839489), (43, 449029), (161, 119927), (301, 64147), (989, 19523), (2789, 6923)]