28638657

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:570

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 16151103

約数列:

[1, 3, 9, 23, 27, 69, 107, 207, 321, 431, 621, 963, 1293, 2461, 2889, 3879, 7383, 9913, 11637, 22149, 29739, 46117, 66447, 89217, 138351, 267651, 415053, 1060691, 1245159, 3182073, 9546219, 28638657]

約数ペア:

[(1, 28638657), (3, 9546219), (9, 3182073), (23, 1245159), (27, 1060691), (69, 415053), (107, 267651), (207, 138351), (321, 89217), (431, 66447), (621, 46117), (963, 29739), (1293, 22149), (2461, 11637), (2889, 9913), (3879, 7383)]