67681691

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{631}}^1$

素因数の和:855

約数の個数: 24

約数和(自身を含む): 86457600

約数和(自身を除く): 18775909

約数列:

[1, 7, 11, 49, 77, 199, 539, 631, 1393, 2189, 4417, 6941, 9751, 15323, 30919, 48587, 107261, 125569, 340109, 878983, 1381259, 6152881, 9668813, 67681691]

約数ペア:

[(1, 67681691), (7, 9668813), (11, 6152881), (49, 1381259), (77, 878983), (199, 340109), (539, 125569), (631, 107261), (1393, 48587), (2189, 30919), (4417, 15323), (6941, 9751)]