12381291

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 20756736

約数和(自身を除く): 8375445

約数列:

[1, 3, 9, 13, 23, 39, 43, 69, 107, 117, 129, 207, 299, 321, 387, 559, 897, 963, 989, 1391, 1677, 2461, 2691, 2967, 4173, 4601, 5031, 7383, 8901, 12519, 12857, 13803, 22149, 31993, 38571, 41409, 59813, 95979, 105823, 115713, 179439, 287937, 317469, 538317, 952407, 1375699, 4127097, 12381291]

約数ペア:

[(1, 12381291), (3, 4127097), (9, 1375699), (13, 952407), (23, 538317), (39, 317469), (43, 287937), (69, 179439), (107, 115713), (117, 105823), (129, 95979), (207, 59813), (299, 41409), (321, 38571), (387, 31993), (559, 22149), (897, 13803), (963, 12857), (989, 12519), (1391, 8901), (1677, 7383), (2461, 5031), (2691, 4601), (2967, 4173)]