81242109

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{77153}}^1$

素因数の和:77178

約数の個数: 20

約数和(自身を含む): 130698876

約数和(自身を除く): 49456767

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 77153, 231459, 694377, 1002989, 2083131, 3008967, 6249393, 9026901, 27080703, 81242109]

約数ペア:

[(1, 81242109), (3, 27080703), (9, 9026901), (13, 6249393), (27, 3008967), (39, 2083131), (81, 1002989), (117, 694377), (351, 231459), (1053, 77153)]