17820513

素因数分解:

$3^3\times {\mathrm{127}}^1\times {\mathrm{5197}}^1$

素因数の和:5333

約数の個数: 16

約数和(自身を含む): 26613760

約数和(自身を除く): 8793247

約数列:

[1, 3, 9, 27, 127, 381, 1143, 3429, 5197, 15591, 46773, 140319, 660019, 1980057, 5940171, 17820513]

約数ペア:

[(1, 17820513), (3, 5940171), (9, 1980057), (27, 660019), (127, 140319), (381, 46773), (1143, 15591), (3429, 5197)]