19663857

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{16937}}^1$

素因数の和:16989

約数の個数: 16

約数和(自身を含む): 29810880

約数和(自身を除く): 10147023

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 16937, 50811, 152433, 457299, 728291, 2184873, 6554619, 19663857]

約数ペア:

[(1, 19663857), (3, 6554619), (9, 2184873), (27, 728291), (43, 457299), (129, 152433), (387, 50811), (1161, 16937)]