19860001

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{269}}^1$

素因数の和:528

約数の個数: 16

約数和(自身を含む): 23328000

約数和(自身を除く): 3467999

約数列:

[1, 7, 53, 199, 269, 371, 1393, 1883, 10547, 14257, 53531, 73829, 99799, 374717, 2837143, 19860001]

約数ペア:

[(1, 19860001), (7, 2837143), (53, 374717), (199, 99799), (269, 73829), (371, 53531), (1393, 14257), (1883, 10547)]