8721806779

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{6121}}^1$

素因数の和:6307

約数の個数: 32

約数和(自身を含む): 10494185472

約数和(自身を除く): 1772378693

約数列:

[1, 7, 47, 61, 71, 329, 427, 497, 2867, 3337, 4331, 6121, 20069, 23359, 30317, 42847, 203557, 287687, 373381, 434591, 1424899, 2013809, 2613667, 3042137, 17548907, 20425777, 26510051, 122842349, 142980439, 185570357, 1245972397, 8721806779]

約数ペア:

[(1, 8721806779), (7, 1245972397), (47, 185570357), (61, 142980439), (71, 122842349), (329, 26510051), (427, 20425777), (497, 17548907), (2867, 3042137), (3337, 2613667), (4331, 2013809), (6121, 1424899), (20069, 434591), (23359, 373381), (30317, 287687), (42847, 203557)]