21727849

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{727}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 27110720

約数和(自身を除く): 5382871

約数列:

[1, 11, 13, 19, 121, 143, 209, 247, 727, 1573, 2299, 2717, 7997, 9451, 13813, 29887, 87967, 103961, 151943, 179569, 1143571, 1671373, 1975259, 21727849]

約数ペア:

[(1, 21727849), (11, 1975259), (13, 1671373), (19, 1143571), (121, 179569), (143, 151943), (209, 103961), (247, 87967), (727, 29887), (1573, 13813), (2299, 9451), (2717, 7997)]