20337999

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 31488000

約数和(自身を除く): 11150001

約数列:

[1, 3, 11, 19, 33, 57, 163, 199, 209, 489, 597, 627, 1793, 2189, 3097, 3781, 5379, 6567, 9291, 11343, 32437, 34067, 41591, 97311, 102201, 124773, 356807, 616303, 1070421, 1848909, 6779333, 20337999]

約数ペア:

[(1, 20337999), (3, 6779333), (11, 1848909), (19, 1070421), (33, 616303), (57, 356807), (163, 124773), (199, 102201), (209, 97311), (489, 41591), (597, 34067), (627, 32437), (1793, 11343), (2189, 9291), (3097, 6567), (3781, 5379)]