20974173

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13523}}^1$

素因数の和:13584

約数の個数: 16

約数和(自身を含む): 31159296

約数和(自身を除く): 10185123

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13523, 40569, 148753, 446259, 635581, 1906743, 6991391, 20974173]

約数ペア:

[(1, 20974173), (3, 6991391), (11, 1906743), (33, 635581), (47, 446259), (141, 148753), (517, 40569), (1551, 13523)]