31160031

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{337}}^1$

素因数の和:408

約数の個数: 48

約数和(自身を含む): 52711776

約数和(自身を除く): 21551745

約数列:

[1, 3, 7, 17, 21, 37, 49, 51, 111, 119, 147, 259, 337, 357, 629, 777, 833, 1011, 1813, 1887, 2359, 2499, 4403, 5439, 5729, 7077, 12469, 13209, 16513, 17187, 30821, 37407, 40103, 49539, 87283, 92463, 120309, 211973, 261849, 280721, 610981, 635919, 842163, 1483811, 1832943, 4451433, 10386677, 31160031]

約数ペア:

[(1, 31160031), (3, 10386677), (7, 4451433), (17, 1832943), (21, 1483811), (37, 842163), (49, 635919), (51, 610981), (111, 280721), (119, 261849), (147, 211973), (259, 120309), (337, 92463), (357, 87283), (629, 49539), (777, 40103), (833, 37407), (1011, 30821), (1813, 17187), (1887, 16513), (2359, 13209), (2499, 12469), (4403, 7077), (5439, 5729)]