18957807

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21277}}^1$

素因数の和:21300

約数の個数: 20

約数和(自身を含む): 30895656

約数和(自身を除く): 11937849

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21277, 63831, 191493, 234047, 574479, 702141, 1723437, 2106423, 6319269, 18957807]

約数ペア:

[(1, 18957807), (3, 6319269), (9, 2106423), (11, 1723437), (27, 702141), (33, 574479), (81, 234047), (99, 191493), (297, 63831), (891, 21277)]