20628769

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7537}}^1$

素因数の和:7584

約数の個数: 16

約数和(自身を含む): 26051328

約数和(自身を除く): 5422559

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7537, 52759, 128129, 173351, 896903, 1213457, 2946967, 20628769]

約数ペア:

[(1, 20628769), (7, 2946967), (17, 1213457), (23, 896903), (119, 173351), (161, 128129), (391, 52759), (2737, 7537)]