20889657

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{8893}}^1$

素因数の和:8934

約数の個数: 20

約数和(自身を含む): 32285220

約数和(自身を除く): 11395563

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 8893, 26679, 80037, 240111, 257897, 720333, 773691, 2321073, 6963219, 20889657]

約数ペア:

[(1, 20889657), (3, 6963219), (9, 2321073), (27, 773691), (29, 720333), (81, 257897), (87, 240111), (261, 80037), (783, 26679), (2349, 8893)]