81239613

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{297581}}^1$

素因数の和:297604

約数の個数: 16

約数和(自身を含む): 133316736

約数和(自身を除く): 52077123

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 297581, 892743, 2083067, 3868553, 6249201, 11605659, 27079871, 81239613]

約数ペア:

[(1, 81239613), (3, 27079871), (7, 11605659), (13, 6249201), (21, 3868553), (39, 2083067), (91, 892743), (273, 297581)]