81486171

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{283}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 133975296

約数和(自身を除く): 52489125

約数列:

[1, 3, 9, 13, 23, 39, 69, 107, 117, 207, 283, 299, 321, 849, 897, 963, 1391, 2461, 2547, 2691, 3679, 4173, 6509, 7383, 11037, 12519, 19527, 22149, 30281, 31993, 33111, 58581, 84617, 90843, 95979, 253851, 272529, 287937, 393653, 696463, 761553, 1180959, 2089389, 3542877, 6268167, 9054019, 27162057, 81486171]

約数ペア:

[(1, 81486171), (3, 27162057), (9, 9054019), (13, 6268167), (23, 3542877), (39, 2089389), (69, 1180959), (107, 761553), (117, 696463), (207, 393653), (283, 287937), (299, 272529), (321, 253851), (849, 95979), (897, 90843), (963, 84617), (1391, 58581), (2461, 33111), (2547, 31993), (2691, 30281), (3679, 22149), (4173, 19527), (6509, 12519), (7383, 11037)]