209932479

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{89371}}^1$

素因数の和:89412

約数の個数: 20

約数和(自身を含む): 324420360

約数和(自身を除く): 114487881

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 89371, 268113, 804339, 2413017, 2591759, 7239051, 7775277, 23325831, 69977493, 209932479]

約数ペア:

[(1, 209932479), (3, 69977493), (9, 23325831), (27, 7775277), (29, 7239051), (81, 2591759), (87, 2413017), (261, 804339), (783, 268113), (2349, 89371)]