20923221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{7639}}^1$

素因数の和:7736

約数の個数: 16

約数和(自身を含む): 30804480

約数和(自身を除く): 9881259

約数列:

[1, 3, 11, 33, 83, 249, 913, 2739, 7639, 22917, 84029, 252087, 634037, 1902111, 6974407, 20923221]

約数ペア:

[(1, 20923221), (3, 6974407), (11, 1902111), (33, 634037), (83, 252087), (249, 84029), (913, 22917), (2739, 7639)]