19890153

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1831}}^1$

素因数の和:1925

約数の個数: 24

約数和(自身を含む): 30865536

約数和(自身を除く): 10975383

約数列:

[1, 3, 9, 17, 51, 71, 153, 213, 639, 1207, 1831, 3621, 5493, 10863, 16479, 31127, 93381, 130001, 280143, 390003, 1170009, 2210017, 6630051, 19890153]

約数ペア:

[(1, 19890153), (3, 6630051), (9, 2210017), (17, 1170009), (51, 390003), (71, 280143), (153, 130001), (213, 93381), (639, 31127), (1207, 16479), (1831, 10863), (3621, 5493)]