51971361

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^2$

素因数の和:361

約数の個数: 24

約数和(自身を含む): 76233024

約数和(自身を除く): 24261663

約数列:

[1, 3, 13, 39, 71, 137, 213, 411, 923, 1781, 2769, 5343, 9727, 18769, 29181, 56307, 126451, 243997, 379353, 731991, 1332599, 3997797, 17323787, 51971361]

約数ペア:

[(1, 51971361), (3, 17323787), (13, 3997797), (39, 1332599), (71, 731991), (137, 379353), (213, 243997), (411, 126451), (923, 56307), (1781, 29181), (2769, 18769), (5343, 9727)]