18729579

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 9655701

約数列:

[1, 3, 11, 33, 41, 109, 123, 127, 327, 381, 451, 1199, 1353, 1397, 3597, 4191, 4469, 5207, 13407, 13843, 15621, 41529, 49159, 57277, 147477, 152273, 171831, 456819, 567563, 1702689, 6243193, 18729579]

約数ペア:

[(1, 18729579), (3, 6243193), (11, 1702689), (33, 567563), (41, 456819), (109, 171831), (123, 152273), (127, 147477), (327, 57277), (381, 49159), (451, 41529), (1199, 15621), (1353, 13843), (1397, 13407), (3597, 5207), (4191, 4469)]