20705589

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{4349}}^1$

素因数の和:4401

約数の個数: 18

約数和(自身を含む): 31272150

約数和(自身を除く): 10566561

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4349, 4761, 13047, 39141, 100027, 300081, 900243, 2300621, 6901863, 20705589]

約数ペア:

[(1, 20705589), (3, 6901863), (9, 2300621), (23, 900243), (69, 300081), (207, 100027), (529, 39141), (1587, 13047), (4349, 4761)]