28321881

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79333}}^1$

素因数の和:79360

約数の個数: 16

約数和(自身を含む): 45696384

約数和(自身を除く): 17374503

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 79333, 237999, 555331, 1348661, 1665993, 4045983, 9440627, 28321881]

約数ペア:

[(1, 28321881), (3, 9440627), (7, 4045983), (17, 1665993), (21, 1348661), (51, 555331), (119, 237999), (357, 79333)]