18969579

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{16339}}^1$

素因数の和:16391

約数の個数: 16

約数和(自身を含む): 28758400

約数和(自身を除く): 9788821

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 16339, 49017, 147051, 441153, 702577, 2107731, 6323193, 18969579]

約数ペア:

[(1, 18969579), (3, 6323193), (9, 2107731), (27, 702577), (43, 441153), (129, 147051), (387, 49017), (1161, 16339)]