18888947

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{769}}^1$

素因数の和:827

約数の個数: 24

約数和(自身を含む): 24578400

約数和(自身を除く): 5689453

約数列:

[1, 7, 11, 29, 77, 121, 203, 319, 769, 847, 2233, 3509, 5383, 8459, 22301, 24563, 59213, 93049, 156107, 245311, 651343, 1717177, 2698421, 18888947]

約数ペア:

[(1, 18888947), (7, 2698421), (11, 1717177), (29, 651343), (77, 245311), (121, 156107), (203, 93049), (319, 59213), (769, 24563), (847, 22301), (2233, 8459), (3509, 5383)]