12226221

素因数分解:

$3^4\times 7^1\times {\mathrm{21563}}^1$

素因数の和:21582

約数の個数: 20

約数和(自身を含む): 20873952

約数和(自身を除く): 8647731

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 21563, 64689, 150941, 194067, 452823, 582201, 1358469, 1746603, 4075407, 12226221]

約数ペア:

[(1, 12226221), (3, 4075407), (7, 1746603), (9, 1358469), (21, 582201), (27, 452823), (63, 194067), (81, 150941), (189, 64689), (567, 21563)]