19808361

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{10333}}^1$

素因数の和:10413

約数の個数: 16

約数和(自身を含む): 29761920

約数和(自身を除く): 9953559

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 10333, 30999, 92997, 278991, 733643, 2200929, 6602787, 19808361]

約数ペア:

[(1, 19808361), (3, 6602787), (9, 2200929), (27, 733643), (71, 278991), (213, 92997), (639, 30999), (1917, 10333)]