21904707

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{9349}}^1$

素因数の和:9434

約数の個数: 16

約数和(自身を含む): 32313600

約数和(自身を除く): 10408893

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 9349, 28047, 102839, 308517, 663779, 1991337, 7301569, 21904707]

約数ペア:

[(1, 21904707), (3, 7301569), (11, 1991337), (33, 663779), (71, 308517), (213, 102839), (781, 28047), (2343, 9349)]