28975921

素因数分解:

${\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{563}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 32405184

約数和(自身を除く): 3429263

約数列:

[1, 13, 37, 107, 481, 563, 1391, 3959, 7319, 20831, 51467, 60241, 270803, 783133, 2228917, 28975921]

約数ペア:

[(1, 28975921), (13, 2228917), (37, 783133), (107, 270803), (481, 60241), (563, 51467), (1391, 20831), (3959, 7319)]