13121121

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{401}}^1\times {\mathrm{839}}^1$

素因数の和:1256

約数の個数: 16

約数和(自身を含む): 18910080

約数和(自身を除く): 5788959

約数列:

[1, 3, 13, 39, 401, 839, 1203, 2517, 5213, 10907, 15639, 32721, 336439, 1009317, 4373707, 13121121]

約数ペア:

[(1, 13121121), (3, 4373707), (13, 1009317), (39, 336439), (401, 32721), (839, 15639), (1203, 10907), (2517, 5213)]