1520991891

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{4111}}^1$

素因数の和:4384

約数の個数: 32

約数和(自身を含む): 2297456640

約数和(自身を除く): 776464749

約数列:

[1, 3, 9, 27, 71, 193, 213, 579, 639, 1737, 1917, 4111, 5211, 12333, 13703, 36999, 41109, 110997, 123327, 291881, 369981, 793423, 875643, 2380269, 2626929, 7140807, 7880787, 21422421, 56333033, 168999099, 506997297, 1520991891]

約数ペア:

[(1, 1520991891), (3, 506997297), (9, 168999099), (27, 56333033), (71, 21422421), (193, 7880787), (213, 7140807), (579, 2626929), (639, 2380269), (1737, 875643), (1917, 793423), (4111, 369981), (5211, 291881), (12333, 123327), (13703, 110997), (36999, 41109)]