1640874969

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{83137}}^1$

素因数の和:83206

約数の個数: 32

約数和(自身を含む): 2633811840

約数和(自身を除く): 992936871

約数列:

[1, 3, 9, 17, 27, 43, 51, 129, 153, 387, 459, 731, 1161, 2193, 6579, 19737, 83137, 249411, 748233, 1413329, 2244699, 3574891, 4239987, 10724673, 12719961, 32174019, 38159883, 60773147, 96522057, 182319441, 546958323, 1640874969]

約数ペア:

[(1, 1640874969), (3, 546958323), (9, 182319441), (17, 96522057), (27, 60773147), (43, 38159883), (51, 32174019), (129, 12719961), (153, 10724673), (387, 4239987), (459, 3574891), (731, 2244699), (1161, 1413329), (2193, 748233), (6579, 249411), (19737, 83137)]