19400139

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1543}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 30830592

約数和(自身を除く): 11430453

約数列:

[1, 3, 9, 11, 33, 99, 127, 381, 1143, 1397, 1543, 4191, 4629, 12573, 13887, 16973, 50919, 152757, 195961, 587883, 1763649, 2155571, 6466713, 19400139]

約数ペア:

[(1, 19400139), (3, 6466713), (9, 2155571), (11, 1763649), (33, 587883), (99, 195961), (127, 152757), (381, 50919), (1143, 16973), (1397, 13887), (1543, 12573), (4191, 4629)]