21075777

素因数分解:

$3^2\times {\mathrm{127}}^1\times {\mathrm{18439}}^1$

素因数の和:18572

約数の個数: 12

約数和(自身を含む): 30684160

約数和(自身を除く): 9608383

約数列:

[1, 3, 9, 127, 381, 1143, 18439, 55317, 165951, 2341753, 7025259, 21075777]

約数ペア:

[(1, 21075777), (3, 7025259), (9, 2341753), (127, 165951), (381, 55317), (1143, 18439)]