81673839

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{77563}}^1$

素因数の和:77588

約数の個数: 20

約数和(自身を含む): 131393416

約数和(自身を除く): 49719577

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 77563, 232689, 698067, 1008319, 2094201, 3024957, 6282603, 9074871, 27224613, 81673839]

約数ペア:

[(1, 81673839), (3, 27224613), (9, 9074871), (13, 6282603), (27, 3024957), (39, 2094201), (81, 1008319), (117, 698067), (351, 232689), (1053, 77563)]