13221873

素因数分解:

$3^6\times 7^1\times {\mathrm{2591}}^1$

素因数の和:2616

約数の個数: 28

約数和(自身を含む): 22664448

約数和(自身を除く): 9442575

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2591, 5103, 7773, 18137, 23319, 54411, 69957, 163233, 209871, 489699, 629613, 1469097, 1888839, 4407291, 13221873]

約数ペア:

[(1, 13221873), (3, 4407291), (7, 1888839), (9, 1469097), (21, 629613), (27, 489699), (63, 209871), (81, 163233), (189, 69957), (243, 54411), (567, 23319), (729, 18137), (1701, 7773), (2591, 5103)]