28797027

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{72173}}^1$

素因数の和:72202

約数の個数: 16

約数和(自身を含む): 46191360

約数和(自身を除く): 17394333

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 72173, 216519, 505211, 1371287, 1515633, 4113861, 9599009, 28797027]

約数ペア:

[(1, 28797027), (3, 9599009), (7, 4113861), (19, 1515633), (21, 1371287), (57, 505211), (133, 216519), (399, 72173)]