856964234

素因数分解:

$2^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{20479}}^1$

素因数の和:20563

約数の個数: 32

約数和(自身を含む): 1523712000

約数和(自身を除く): 666747766

約数列:

[1, 2, 7, 14, 49, 61, 98, 122, 343, 427, 686, 854, 2989, 5978, 20479, 20923, 40958, 41846, 143353, 286706, 1003471, 1249219, 2006942, 2498438, 7024297, 8744533, 14048594, 17489066, 61211731, 122423462, 428482117, 856964234]

約数ペア:

[(1, 856964234), (2, 428482117), (7, 122423462), (14, 61211731), (49, 17489066), (61, 14048594), (98, 8744533), (122, 7024297), (343, 2498438), (427, 2006942), (686, 1249219), (854, 1003471), (2989, 286706), (5978, 143353), (20479, 41846), (20923, 40958)]