28773531

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1331

約数の個数: 24

約数和(自身を含む): 43321824

約数和(自身を除く): 14548293

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 1217, 2627, 3651, 7881, 10953, 23643, 45029, 86407, 135087, 259221, 405261, 777663, 3197059, 9591177, 28773531]

約数ペア:

[(1, 28773531), (3, 9591177), (9, 3197059), (37, 777663), (71, 405261), (111, 259221), (213, 135087), (333, 86407), (639, 45029), (1217, 23643), (2627, 10953), (3651, 7881)]