21033279

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1\times {\mathrm{761}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 31619952

約数和(自身を除く): 10586673

約数列:

[1, 3, 9, 37, 83, 111, 249, 333, 747, 761, 2283, 3071, 6849, 9213, 27639, 28157, 63163, 84471, 189489, 253413, 568467, 2337031, 7011093, 21033279]

約数ペア:

[(1, 21033279), (3, 7011093), (9, 2337031), (37, 568467), (83, 253413), (111, 189489), (249, 84471), (333, 63163), (747, 28157), (761, 27639), (2283, 9213), (3071, 6849)]