28686749

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10169}}^1$

素因数の和:10220

約数の個数: 16

約数和(自身を含む): 36449280

約数和(自身を除く): 7762531

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 10169, 71183, 132197, 315239, 925379, 2206673, 4098107, 28686749]

約数ペア:

[(1, 28686749), (7, 4098107), (13, 2206673), (31, 925379), (91, 315239), (217, 132197), (403, 71183), (2821, 10169)]