11721591

素因数分解:

$3^6\times 7^1\times {\mathrm{2297}}^1$

素因数の和:2322

約数の個数: 28

約数和(自身を含む): 20093712

約数和(自身を除く): 8372121

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 2297, 5103, 6891, 16079, 20673, 48237, 62019, 144711, 186057, 434133, 558171, 1302399, 1674513, 3907197, 11721591]

約数ペア:

[(1, 11721591), (3, 3907197), (7, 1674513), (9, 1302399), (21, 558171), (27, 434133), (63, 186057), (81, 144711), (189, 62019), (243, 48237), (567, 20673), (729, 16079), (1701, 6891), (2297, 5103)]