128912877

素因数分解:

$3^4\times {\mathrm{911}}^1\times {\mathrm{1747}}^1$

素因数の和:2670

約数の個数: 20

約数和(自身を含む): 192895296

約数和(自身を除く): 63982419

約数列:

[1, 3, 9, 27, 81, 911, 1747, 2733, 5241, 8199, 15723, 24597, 47169, 73791, 141507, 1591517, 4774551, 14323653, 42970959, 128912877]

約数ペア:

[(1, 128912877), (3, 42970959), (9, 14323653), (27, 4774551), (81, 1591517), (911, 141507), (1747, 73791), (2733, 47169), (5241, 24597), (8199, 15723)]