28098889

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4349}}^1$

素因数の和:4440

約数の個数: 16

約数和(自身を含む): 35078400

約数和(自身を除く): 6979511

約数列:

[1, 7, 13, 71, 91, 497, 923, 4349, 6461, 30443, 56537, 308779, 395759, 2161453, 4014127, 28098889]

約数ペア:

[(1, 28098889), (7, 4014127), (13, 2161453), (71, 395759), (91, 308779), (497, 56537), (923, 30443), (4349, 6461)]