12871257

素因数分解:

$3^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{887}}^1$

素因数の和:1588

約数の個数: 16

約数和(自身を含む): 19663872

約数和(自身を除く): 6792615

約数列:

[1, 3, 7, 21, 691, 887, 2073, 2661, 4837, 6209, 14511, 18627, 612917, 1838751, 4290419, 12871257]

約数ペア:

[(1, 12871257), (3, 4290419), (7, 1838751), (21, 612917), (691, 18627), (887, 14511), (2073, 6209), (2661, 4837)]