20123258121

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{7621}}^1\times {\mathrm{6823}}^1$

素因数の和:14493

約数の個数: 24

約数和(自身を含む): 29751166016

約数和(自身を除く): 9627907895

約数列:

[1, 3, 9, 43, 129, 387, 6823, 7621, 20469, 22863, 61407, 68589, 293389, 327703, 880167, 983109, 2640501, 2949327, 51998083, 155994249, 467982747, 2235917569, 6707752707, 20123258121]

約数ペア:

[(1, 20123258121), (3, 6707752707), (9, 2235917569), (43, 467982747), (129, 155994249), (387, 51998083), (6823, 2949327), (7621, 2640501), (20469, 983109), (22863, 880167), (61407, 327703), (68589, 293389)]