21120229

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2311}}^1$

素因数の和:2380

約数の個数: 16

約数和(自身を含む): 24599680

約数和(自身を除く): 3479451

約数列:

[1, 13, 19, 37, 247, 481, 703, 2311, 9139, 30043, 43909, 85507, 570817, 1111591, 1624633, 21120229]

約数ペア:

[(1, 21120229), (13, 1624633), (19, 1111591), (37, 570817), (247, 85507), (481, 43909), (703, 30043), (2311, 9139)]