21820887

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{73471}}^1$

素因数の和:73491

約数の個数: 16

約数和(自身を含む): 35266560

約数和(自身を除く): 13445673

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 73471, 220413, 661239, 808181, 1983717, 2424543, 7273629, 21820887]

約数ペア:

[(1, 21820887), (3, 7273629), (9, 2424543), (11, 1983717), (27, 808181), (33, 661239), (99, 220413), (297, 73471)]