25979859

素因数分解:

$3^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 43505280

約数和(自身を除く): 17525421

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 81, 153, 171, 243, 323, 331, 459, 513, 969, 993, 1377, 1539, 2907, 2979, 4131, 4617, 5627, 6289, 8721, 8937, 16881, 18867, 26163, 26811, 50643, 56601, 78489, 80433, 106913, 151929, 169803, 320739, 455787, 509409, 962217, 1367361, 1528227, 2886651, 8659953, 25979859]

約数ペア:

[(1, 25979859), (3, 8659953), (9, 2886651), (17, 1528227), (19, 1367361), (27, 962217), (51, 509409), (57, 455787), (81, 320739), (153, 169803), (171, 151929), (243, 106913), (323, 80433), (331, 78489), (459, 56601), (513, 50643), (969, 26811), (993, 26163), (1377, 18867), (1539, 16881), (2907, 8937), (2979, 8721), (4131, 6289), (4617, 5627)]