12981141

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{3727}}^1$

素因数の和:3782

約数の個数: 20

約数和(自身を含む): 19847872

約数和(自身を除く): 6866731

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 3727, 11181, 33543, 100629, 160261, 301887, 480783, 1442349, 4327047, 12981141]

約数ペア:

[(1, 12981141), (3, 4327047), (9, 1442349), (27, 480783), (43, 301887), (81, 160261), (129, 100629), (387, 33543), (1161, 11181), (3483, 3727)]