18938007

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{821}}^1$

素因数の和:1071

約数の個数: 24

約数和(自身を含む): 30006288

約数和(自身を除く): 11068281

約数列:

[1, 3, 9, 11, 33, 99, 233, 699, 821, 2097, 2463, 2563, 7389, 7689, 9031, 23067, 27093, 81279, 191293, 573879, 1721637, 2104223, 6312669, 18938007]

約数ペア:

[(1, 18938007), (3, 6312669), (9, 2104223), (11, 1721637), (33, 573879), (99, 191293), (233, 81279), (699, 27093), (821, 23067), (2097, 9031), (2463, 7689), (2563, 7389)]