81568971

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11941}}^1$

素因数の和:11984

約数の個数: 32

約数和(自身を含む): 137571840

約数和(自身を除く): 56002869

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 207, 253, 297, 621, 759, 2277, 6831, 11941, 35823, 107469, 131351, 274643, 322407, 394053, 823929, 1182159, 2471787, 3021073, 3546477, 7415361, 9063219, 27189657, 81568971]

約数ペア:

[(1, 81568971), (3, 27189657), (9, 9063219), (11, 7415361), (23, 3546477), (27, 3021073), (33, 2471787), (69, 1182159), (99, 823929), (207, 394053), (253, 322407), (297, 274643), (621, 131351), (759, 107469), (2277, 35823), (6831, 11941)]