20527555

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1\times {\mathrm{311}}^1$

素因数の和:666

約数の個数: 16

約数和(自身を含む): 25369344

約数和(自身を除く): 4841789

約数列:

[1, 5, 43, 215, 307, 311, 1535, 1555, 13201, 13373, 66005, 66865, 95477, 477385, 4105511, 20527555]

約数ペア:

[(1, 20527555), (5, 4105511), (43, 477385), (215, 95477), (307, 66865), (311, 66005), (1535, 13373), (1555, 13201)]