28709317

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10177}}^1$

素因数の和:10228

約数の個数: 16

約数和(自身を含む): 36477952

約数和(自身を除く): 7768635

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 10177, 71239, 132301, 315487, 926107, 2208409, 4101331, 28709317]

約数ペア:

[(1, 28709317), (7, 4101331), (13, 2208409), (31, 926107), (91, 315487), (217, 132301), (403, 71239), (2821, 10177)]