20560689

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{293}}^1$

素因数の和:438

約数の個数: 32

約数和(自身を含む): 32175360

約数和(自身を除く): 11614671

約数列:

[1, 3, 9, 23, 27, 69, 113, 207, 293, 339, 621, 879, 1017, 2599, 2637, 3051, 6739, 7797, 7911, 20217, 23391, 33109, 60651, 70173, 99327, 181953, 297981, 761507, 893943, 2284521, 6853563, 20560689]

約数ペア:

[(1, 20560689), (3, 6853563), (9, 2284521), (23, 893943), (27, 761507), (69, 297981), (113, 181953), (207, 99327), (293, 70173), (339, 60651), (621, 33109), (879, 23391), (1017, 20217), (2599, 7911), (2637, 7797), (3051, 6739)]