20682513

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10789}}^1$

素因数の和:10869

約数の個数: 16

約数和(自身を含む): 31075200

約数和(自身を除く): 10392687

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10789, 32367, 97101, 291303, 766019, 2298057, 6894171, 20682513]

約数ペア:

[(1, 20682513), (3, 6894171), (9, 2298057), (27, 766019), (71, 291303), (213, 97101), (639, 32367), (1917, 10789)]