20659947

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5261}}^1$

素因数の和:5299

約数の個数: 32

約数和(自身を含む): 36370944

約数和(自身を除く): 15710997

約数列:

[1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927, 5261, 15783, 36827, 57871, 89437, 110481, 173613, 268311, 405097, 626059, 983807, 1215291, 1878177, 2951421, 6886649, 20659947]

約数ペア:

[(1, 20659947), (3, 6886649), (7, 2951421), (11, 1878177), (17, 1215291), (21, 983807), (33, 626059), (51, 405097), (77, 268311), (119, 173613), (187, 110481), (231, 89437), (357, 57871), (561, 36827), (1309, 15783), (3927, 5261)]