199857889

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{13043}}^1$

素因数の和:13260

約数の個数: 16

約数和(自身を含む): 250444800

約数和(自身を除く): 50586911

約数列:

[1, 7, 11, 77, 199, 1393, 2189, 13043, 15323, 91301, 143473, 1004311, 2595557, 18168899, 28551127, 199857889]

約数ペア:

[(1, 199857889), (7, 28551127), (11, 18168899), (77, 2595557), (199, 1004311), (1393, 143473), (2189, 91301), (13043, 15323)]