51390531

素因数分解:

$3^4\times {\mathrm{313}}^1\times {\mathrm{2027}}^1$

素因数の和:2352

約数の個数: 20

約数和(自身を含む): 77051832

約数和(自身を除く): 25661301

約数列:

[1, 3, 9, 27, 81, 313, 939, 2027, 2817, 6081, 8451, 18243, 25353, 54729, 164187, 634451, 1903353, 5710059, 17130177, 51390531]

約数ペア:

[(1, 51390531), (3, 17130177), (9, 5710059), (27, 1903353), (81, 634451), (313, 164187), (939, 54729), (2027, 25353), (2817, 18243), (6081, 8451)]