28989611

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 36917760

約数和(自身を除く): 7928149

約数列:

[1, 7, 19, 37, 43, 133, 137, 259, 301, 703, 817, 959, 1591, 2603, 4921, 5069, 5719, 5891, 11137, 18221, 30229, 35483, 41237, 96311, 111929, 211603, 217967, 674177, 783503, 1525769, 4141373, 28989611]

約数ペア:

[(1, 28989611), (7, 4141373), (19, 1525769), (37, 783503), (43, 674177), (133, 217967), (137, 211603), (259, 111929), (301, 96311), (703, 41237), (817, 35483), (959, 30229), (1591, 18221), (2603, 11137), (4921, 5891), (5069, 5719)]