6639687

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 9990656

約数和(自身を除く): 3350969

約数列:

[1, 3, 9, 37, 111, 127, 157, 333, 381, 471, 1143, 1413, 4699, 5809, 14097, 17427, 19939, 42291, 52281, 59817, 179451, 737743, 2213229, 6639687]

約数ペア:

[(1, 6639687), (3, 2213229), (9, 737743), (37, 179451), (111, 59817), (127, 52281), (157, 42291), (333, 19939), (381, 17427), (471, 14097), (1143, 5809), (1413, 4699)]