28513667

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{727}}^1$

素因数の和:1178

約数の個数: 16

約数和(自身を含む): 35223552

約数和(自身を除く): 6709885

約数列:

[1, 7, 13, 91, 431, 727, 3017, 5089, 5603, 9451, 39221, 66157, 313337, 2193359, 4073381, 28513667]

約数ペア:

[(1, 28513667), (7, 4073381), (13, 2193359), (91, 313337), (431, 66157), (727, 39221), (3017, 9451), (5089, 5603)]