20288691

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{883}}^1$

素因数の和:952

約数の個数: 32

約数和(自身を含む): 32248320

約数和(自身を除く): 11959629

約数列:

[1, 3, 9, 23, 27, 37, 69, 111, 207, 333, 621, 851, 883, 999, 2553, 2649, 7659, 7947, 20309, 22977, 23841, 32671, 60927, 98013, 182781, 294039, 548343, 751433, 882117, 2254299, 6762897, 20288691]

約数ペア:

[(1, 20288691), (3, 6762897), (9, 2254299), (23, 882117), (27, 751433), (37, 548343), (69, 294039), (111, 182781), (207, 98013), (333, 60927), (621, 32671), (851, 23841), (883, 22977), (999, 20309), (2553, 7947), (2649, 7659)]