21139866

素因数分解:

$2^1\times 3^4\times {\mathrm{11}}^1\times {\mathrm{11863}}^1$

素因数の和:11888

約数の個数: 40

約数和(自身を含む): 51679584

約数和(自身を除く): 30539718

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 27, 33, 54, 66, 81, 99, 162, 198, 297, 594, 891, 1782, 11863, 23726, 35589, 71178, 106767, 130493, 213534, 260986, 320301, 391479, 640602, 782958, 960903, 1174437, 1921806, 2348874, 3523311, 7046622, 10569933, 21139866]

約数ペア:

[(1, 21139866), (2, 10569933), (3, 7046622), (6, 3523311), (9, 2348874), (11, 1921806), (18, 1174437), (22, 960903), (27, 782958), (33, 640602), (54, 391479), (66, 320301), (81, 260986), (99, 213534), (162, 130493), (198, 106767), (297, 71178), (594, 35589), (891, 23726), (1782, 11863)]