28639689

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{17911}}^1$

素因数の和:17968

約数の個数: 16

約数和(自身を含む): 42129024

約数和(自身を除く): 13489335

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 17911, 53733, 232843, 698529, 734351, 2203053, 9546563, 28639689]

約数ペア:

[(1, 28639689), (3, 9546563), (13, 2203053), (39, 734351), (41, 698529), (123, 232843), (533, 53733), (1599, 17911)]