28199899

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{719}}^1$

素因数の和:1170

約数の個数: 16

約数和(自身を含む): 34836480

約数和(自身を除く): 6636581

約数列:

[1, 7, 13, 91, 431, 719, 3017, 5033, 5603, 9347, 39221, 65429, 309889, 2169223, 4028557, 28199899]

約数ペア:

[(1, 28199899), (7, 4028557), (13, 2169223), (91, 309889), (431, 65429), (719, 39221), (3017, 9347), (5033, 5603)]