28708257

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{4297}}^1$

素因数の和:4448

約数の個数: 16

約数和(自身を含む): 40848192

約数和(自身を除く): 12139935

約数列:

[1, 3, 17, 51, 131, 393, 2227, 4297, 6681, 12891, 73049, 219147, 562907, 1688721, 9569419, 28708257]

約数ペア:

[(1, 28708257), (3, 9569419), (17, 1688721), (51, 562907), (131, 219147), (393, 73049), (2227, 12891), (4297, 6681)]