81271729

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{971}}^1\times {\mathrm{1087}}^1$

素因数の和:2076

約数の個数: 16

約数和(自身を含む): 101523456

約数和(自身を除く): 20251727

約数列:

[1, 7, 11, 77, 971, 1087, 6797, 7609, 10681, 11957, 74767, 83699, 1055477, 7388339, 11610247, 81271729]

約数ペア:

[(1, 81271729), (7, 11610247), (11, 7388339), (77, 1055477), (971, 83699), (1087, 74767), (6797, 11957), (7609, 10681)]