2780212897

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1164731}}^1$

素因数の和:1164780

約数の個数: 16

約数和(自身を含む): 3578056704

約数和(自身を除く): 797843807

約数列:

[1, 7, 11, 31, 77, 217, 341, 2387, 1164731, 8153117, 12812041, 36106661, 89684287, 252746627, 397173271, 2780212897]

約数ペア:

[(1, 2780212897), (7, 397173271), (11, 252746627), (31, 89684287), (77, 36106661), (217, 12812041), (341, 8153117), (2387, 1164731)]