20417967

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10651}}^1$

素因数の和:10731

約数の個数: 16

約数和(自身を含む): 30677760

約数和(自身を除く): 10259793

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10651, 31953, 95859, 287577, 756221, 2268663, 6805989, 20417967]

約数ペア:

[(1, 20417967), (3, 6805989), (9, 2268663), (27, 756221), (71, 287577), (213, 95859), (639, 31953), (1917, 10651)]