12987247

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{3319}}^1$

素因数の和:3382

約数の個数: 16

約数和(自身を含む): 16360960

約数和(自身を除く): 3373713

約数列:

[1, 7, 13, 43, 91, 301, 559, 3319, 3913, 23233, 43147, 142717, 302029, 999019, 1855321, 12987247]

約数ペア:

[(1, 12987247), (7, 1855321), (13, 999019), (43, 302029), (91, 142717), (301, 43147), (559, 23233), (3319, 3913)]