81830817

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{17123}}^1$

素因数の和:17194

約数の個数: 20

約数和(自身を含む): 124320240

約数和(自身を除く): 42489423

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1593, 4779, 17123, 51369, 154107, 462321, 1010257, 1386963, 3030771, 9092313, 27276939, 81830817]

約数ペア:

[(1, 81830817), (3, 27276939), (9, 9092313), (27, 3030771), (59, 1386963), (81, 1010257), (177, 462321), (531, 154107), (1593, 51369), (4779, 17123)]