128567747

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{20117}}^1$

素因数の和:20218

約数の個数: 16

約数和(自身を含む): 162231552

約数和(自身を除く): 33663805

約数列:

[1, 7, 11, 77, 83, 581, 913, 6391, 20117, 140819, 221287, 1549009, 1669711, 11687977, 18366821, 128567747]

約数ペア:

[(1, 128567747), (7, 18366821), (11, 11687977), (77, 1669711), (83, 1549009), (581, 221287), (913, 140819), (6391, 20117)]