18727929

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21019}}^1$

素因数の和:21042

約数の個数: 20

約数和(自身を含む): 30521040

約数和(自身を除く): 11793111

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21019, 63057, 189171, 231209, 567513, 693627, 1702539, 2080881, 6242643, 18727929]

約数ペア:

[(1, 18727929), (3, 6242643), (9, 2080881), (11, 1702539), (27, 693627), (33, 567513), (81, 231209), (99, 189171), (297, 63057), (891, 21019)]