18009538

素因数分解:

$2^1\times {\mathrm{73}}^1\times {\mathrm{293}}^1\times {\mathrm{421}}^1$

素因数の和:789

約数の個数: 16

約数和(自身を含む): 27543096

約数和(自身を除く): 9533558

約数列:

[1, 2, 73, 146, 293, 421, 586, 842, 21389, 30733, 42778, 61466, 123353, 246706, 9004769, 18009538]

約数ペア:

[(1, 18009538), (2, 9004769), (73, 246706), (146, 123353), (293, 61466), (421, 42778), (586, 30733), (842, 21389)]