19398351

素因数分解:

$3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 11083569

約数列:

[1, 3, 7, 21, 89, 97, 107, 267, 291, 321, 623, 679, 749, 1869, 2037, 2247, 8633, 9523, 10379, 25899, 28569, 31137, 60431, 66661, 72653, 181293, 199983, 217959, 923731, 2771193, 6466117, 19398351]

約数ペア:

[(1, 19398351), (3, 6466117), (7, 2771193), (21, 923731), (89, 217959), (97, 199983), (107, 181293), (267, 72653), (291, 66661), (321, 60431), (623, 31137), (679, 28569), (749, 25899), (1869, 10379), (2037, 9523), (2247, 8633)]