19894553

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{673}}^1$

素因数の和:824

約数の個数: 16

約数和(自身を含む): 23552256

約数和(自身を除く): 3657703

約数列:

[1, 7, 41, 103, 287, 673, 721, 4223, 4711, 27593, 29561, 69319, 193151, 485233, 2842079, 19894553]

約数ペア:

[(1, 19894553), (7, 2842079), (41, 485233), (103, 193151), (287, 69319), (673, 29561), (721, 27593), (4223, 4711)]