20563149

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21221}}^1$

素因数の和:21260

約数の個数: 16

約数和(自身を含む): 30559680

約数和(自身を除く): 9996531

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21221, 63663, 360757, 403199, 1082271, 1209597, 6854383, 20563149]

約数ペア:

[(1, 20563149), (3, 6854383), (17, 1209597), (19, 1082271), (51, 403199), (57, 360757), (323, 63663), (969, 21221)]