256988511

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17027}}^1$

素因数の和:17092

約数の個数: 32

約数和(自身を含む): 419569920

約数和(自身を除く): 162581409

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 5031, 15093, 17027, 51081, 153243, 221351, 459729, 664053, 732161, 1992159, 2196483, 5976477, 6589449, 9518093, 19768347, 28554279, 85662837, 256988511]

約数ペア:

[(1, 256988511), (3, 85662837), (9, 28554279), (13, 19768347), (27, 9518093), (39, 6589449), (43, 5976477), (117, 2196483), (129, 1992159), (351, 732161), (387, 664053), (559, 459729), (1161, 221351), (1677, 153243), (5031, 51081), (15093, 17027)]