11981907

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4423}}^1$

素因数の和:4479

約数の個数: 24

約数和(自身を含む): 20244224

約数和(自身を除く): 8262317

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 4423, 13269, 30961, 39807, 92883, 190189, 278649, 570567, 1331323, 1711701, 3993969, 11981907]

約数ペア:

[(1, 11981907), (3, 3993969), (7, 1711701), (9, 1331323), (21, 570567), (43, 278649), (63, 190189), (129, 92883), (301, 39807), (387, 30961), (903, 13269), (2709, 4423)]