20605123

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3769}}^1$

素因数の和:3858

約数の個数: 16

約数和(自身を含む): 26058240

約数和(自身を除く): 5453117

約数列:

[1, 7, 11, 71, 77, 497, 781, 3769, 5467, 26383, 41459, 267599, 290213, 1873193, 2943589, 20605123]

約数ペア:

[(1, 20605123), (7, 2943589), (11, 1873193), (71, 290213), (77, 267599), (497, 41459), (781, 26383), (3769, 5467)]