28242159

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:331

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 14335761

約数列:

[1, 3, 11, 33, 47, 131, 139, 141, 393, 417, 517, 1441, 1529, 1551, 4323, 4587, 6157, 6533, 18209, 18471, 19599, 54627, 67727, 71863, 200299, 203181, 215589, 600897, 855823, 2567469, 9414053, 28242159]

約数ペア:

[(1, 28242159), (3, 9414053), (11, 2567469), (33, 855823), (47, 600897), (131, 215589), (139, 203181), (141, 200299), (393, 71863), (417, 67727), (517, 54627), (1441, 19599), (1529, 18471), (1551, 18209), (4323, 6533), (4587, 6157)]