31951623

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 50561280

約数和(自身を除く): 18609657

約数列:

[1, 3, 11, 23, 33, 43, 69, 89, 121, 129, 253, 267, 363, 473, 759, 979, 989, 1419, 2047, 2783, 2937, 2967, 3827, 5203, 6141, 8349, 10769, 10879, 11481, 15609, 22517, 32307, 32637, 42097, 67551, 88021, 119669, 126291, 247687, 264063, 359007, 463067, 743061, 968231, 1389201, 2904693, 10650541, 31951623]

約数ペア:

[(1, 31951623), (3, 10650541), (11, 2904693), (23, 1389201), (33, 968231), (43, 743061), (69, 463067), (89, 359007), (121, 264063), (129, 247687), (253, 126291), (267, 119669), (363, 88021), (473, 67551), (759, 42097), (979, 32637), (989, 32307), (1419, 22517), (2047, 15609), (2783, 11481), (2937, 10879), (2967, 10769), (3827, 8349), (5203, 6141)]