215686581

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{1567}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 324538368

約数和(自身を除く): 108851787

約数列:

[1, 3, 11, 33, 43, 97, 129, 291, 473, 1067, 1419, 1567, 3201, 4171, 4701, 12513, 17237, 45881, 51711, 67381, 137643, 151999, 202143, 455997, 741191, 1671989, 2223573, 5015967, 6535957, 19607871, 71895527, 215686581]

約数ペア:

[(1, 215686581), (3, 71895527), (11, 19607871), (33, 6535957), (43, 5015967), (97, 2223573), (129, 1671989), (291, 741191), (473, 455997), (1067, 202143), (1419, 151999), (1567, 137643), (3201, 67381), (4171, 51711), (4701, 45881), (12513, 17237)]