18877523

素因数分解:

$7^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:446

約数の個数: 16

約数和(自身を含む): 22069440

約数和(自身を除く): 3191917

約数列:

[1, 7, 89, 157, 193, 623, 1099, 1351, 13973, 17177, 30301, 97811, 120239, 212107, 2696789, 18877523]

約数ペア:

[(1, 18877523), (7, 2696789), (89, 212107), (157, 120239), (193, 97811), (623, 30301), (1099, 17177), (1351, 13973)]