81003758

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{51859}}^1$

素因数の和:51943

約数の個数: 16

約数和(自身を含む): 134421120

約数和(自身を除く): 53417362

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 51859, 103718, 570449, 1140898, 3681989, 7363978, 40501879, 81003758]

約数ペア:

[(1, 81003758), (2, 40501879), (11, 7363978), (22, 3681989), (71, 1140898), (142, 570449), (781, 103718), (1562, 51859)]