18902889

素因数分解:

$3^4\times {\mathrm{109}}^1\times {\mathrm{2141}}^1$

素因数の和:2262

約数の個数: 20

約数和(自身を含む): 28510020

約数和(自身を除く): 9607131

約数列:

[1, 3, 9, 27, 81, 109, 327, 981, 2141, 2943, 6423, 8829, 19269, 57807, 173421, 233369, 700107, 2100321, 6300963, 18902889]

約数ペア:

[(1, 18902889), (3, 6300963), (9, 2100321), (27, 700107), (81, 233369), (109, 173421), (327, 57807), (981, 19269), (2141, 8829), (2943, 6423)]