21447327

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{307}}^1$

素因数の和:423

約数の個数: 32

約数和(自身を含む): 32820480

約数和(自身を除く): 11373153

約数列:

[1, 3, 11, 29, 33, 73, 87, 219, 307, 319, 803, 921, 957, 2117, 2409, 3377, 6351, 8903, 10131, 22411, 23287, 26709, 67233, 69861, 97933, 246521, 293799, 649919, 739563, 1949757, 7149109, 21447327]

約数ペア:

[(1, 21447327), (3, 7149109), (11, 1949757), (29, 739563), (33, 649919), (73, 293799), (87, 246521), (219, 97933), (307, 69861), (319, 67233), (803, 26709), (921, 23287), (957, 22411), (2117, 10131), (2409, 8903), (3377, 6351)]