199986921

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{337}}^1\times {\mathrm{709}}^1$

素因数の和:1086

約数の個数: 32

約数和(自身を含む): 307174400

約数和(自身を除く): 107187479

約数列:

[1, 3, 9, 27, 31, 93, 279, 337, 709, 837, 1011, 2127, 3033, 6381, 9099, 10447, 19143, 21979, 31341, 65937, 94023, 197811, 238933, 282069, 593433, 716799, 2150397, 6451191, 7406923, 22220769, 66662307, 199986921]

約数ペア:

[(1, 199986921), (3, 66662307), (9, 22220769), (27, 7406923), (31, 6451191), (93, 2150397), (279, 716799), (337, 593433), (709, 282069), (837, 238933), (1011, 197811), (2127, 94023), (3033, 65937), (6381, 31341), (9099, 21979), (10447, 19143)]