18728739

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1158

約数の個数: 28

約数和(自身を含む): 29327376

約数和(自身を除く): 10598637

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 243, 621, 729, 1117, 1863, 3351, 5589, 10053, 16767, 25691, 30159, 77073, 90477, 231219, 271431, 693657, 814293, 2080971, 6242913, 18728739]

約数ペア:

[(1, 18728739), (3, 6242913), (9, 2080971), (23, 814293), (27, 693657), (69, 271431), (81, 231219), (207, 90477), (243, 77073), (621, 30159), (729, 25691), (1117, 16767), (1863, 10053), (3351, 5589)]