15938321

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{293}}^1\times {\mathrm{409}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 19286400

約数和(自身を除く): 3348079

約数列:

[1, 7, 19, 133, 293, 409, 2051, 2863, 5567, 7771, 38969, 54397, 119837, 838859, 2276903, 15938321]

約数ペア:

[(1, 15938321), (7, 2276903), (19, 838859), (133, 119837), (293, 54397), (409, 38969), (2051, 7771), (2863, 5567)]