28157857

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{7547}}^1$

素因数の和:7608

約数の個数: 16

約数和(自身を含む): 35505792

約数和(自身を除く): 7347935

約数列:

[1, 7, 13, 41, 91, 287, 533, 3731, 7547, 52829, 98111, 309427, 686777, 2165989, 4022551, 28157857]

約数ペア:

[(1, 28157857), (7, 4022551), (13, 2165989), (41, 686777), (91, 309427), (287, 98111), (533, 52829), (3731, 7547)]