20342707

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^2\times {\mathrm{71}}^1$

素因数の和:211

約数の個数: 24

約数和(自身を含む): 26148096

約数和(自身を除く): 5805389

約数列:

[1, 7, 11, 61, 71, 77, 427, 497, 671, 781, 3721, 4331, 4697, 5467, 26047, 30317, 40931, 47641, 264191, 286517, 333487, 1849337, 2906101, 20342707]

約数ペア:

[(1, 20342707), (7, 2906101), (11, 1849337), (61, 333487), (71, 286517), (77, 264191), (427, 47641), (497, 40931), (671, 30317), (781, 26047), (3721, 5467), (4331, 4697)]