2857221

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:182

約数の個数: 32

約数和(自身を含む): 4561920

約数和(自身を除く): 1704699

約数列:

[1, 3, 9, 23, 27, 43, 69, 107, 129, 207, 321, 387, 621, 963, 989, 1161, 2461, 2889, 2967, 4601, 7383, 8901, 13803, 22149, 26703, 41409, 66447, 105823, 124227, 317469, 952407, 2857221]

約数ペア:

[(1, 2857221), (3, 952407), (9, 317469), (23, 124227), (27, 105823), (43, 66447), (69, 41409), (107, 26703), (129, 22149), (207, 13803), (321, 8901), (387, 7383), (621, 4601), (963, 2967), (989, 2889), (1161, 2461)]