28159089

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{78877}}^1$

素因数の和:78904

約数の個数: 16

約数和(自身を含む): 45433728

約数和(自身を除く): 17274639

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 78877, 236631, 552139, 1340909, 1656417, 4022727, 9386363, 28159089]

約数ペア:

[(1, 28159089), (3, 9386363), (7, 4022727), (17, 1656417), (21, 1340909), (51, 552139), (119, 236631), (357, 78877)]