31011211

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1$

素因数の和:136

約数の個数: 48

約数和(自身を含む): 42900480

約数和(自身を除く): 11889269

約数列:

[1, 7, 11, 19, 41, 47, 77, 121, 133, 209, 287, 329, 451, 517, 779, 847, 893, 1463, 1927, 2299, 3157, 3619, 4961, 5453, 5687, 6251, 8569, 9823, 13489, 16093, 21197, 34727, 36613, 39809, 59983, 68761, 94259, 108053, 148379, 233167, 256291, 402743, 659813, 756371, 1632169, 2819201, 4430173, 31011211]

約数ペア:

[(1, 31011211), (7, 4430173), (11, 2819201), (19, 1632169), (41, 756371), (47, 659813), (77, 402743), (121, 256291), (133, 233167), (209, 148379), (287, 108053), (329, 94259), (451, 68761), (517, 59983), (779, 39809), (847, 36613), (893, 34727), (1463, 21197), (1927, 16093), (2299, 13489), (3157, 9823), (3619, 8569), (4961, 6251), (5453, 5687)]