21606831

素因数分解:

$3^6\times {\mathrm{107}}^1\times {\mathrm{277}}^1$

素因数の和:402

約数の個数: 28

約数和(自身を含む): 32816232

約数和(自身を除く): 11209401

約数列:

[1, 3, 9, 27, 81, 107, 243, 277, 321, 729, 831, 963, 2493, 2889, 7479, 8667, 22437, 26001, 29639, 67311, 78003, 88917, 201933, 266751, 800253, 2400759, 7202277, 21606831]

約数ペア:

[(1, 21606831), (3, 7202277), (9, 2400759), (27, 800253), (81, 266751), (107, 201933), (243, 88917), (277, 78003), (321, 67311), (729, 29639), (831, 26001), (963, 22437), (2493, 8667), (2889, 7479)]