20393681

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{3191}}^1$

素因数の和:3292

約数の個数: 16

約数和(自身を含む): 25740288

約数和(自身を除く): 5346607

約数列:

[1, 7, 11, 77, 83, 581, 913, 3191, 6391, 22337, 35101, 245707, 264853, 1853971, 2913383, 20393681]

約数ペア:

[(1, 20393681), (7, 2913383), (11, 1853971), (77, 264853), (83, 245707), (581, 35101), (913, 22337), (3191, 6391)]