20386791

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7013}}^1$

素因数の和:7055

約数の個数: 24

約数和(自身を含む): 32825520

約数和(自身を除く): 12438729

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7013, 21039, 63117, 119221, 133247, 357663, 399741, 1072989, 1199223, 2265199, 6795597, 20386791]

約数ペア:

[(1, 20386791), (3, 6795597), (9, 2265199), (17, 1199223), (19, 1072989), (51, 399741), (57, 357663), (153, 133247), (171, 119221), (323, 63117), (969, 21039), (2907, 7013)]