81967193

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1493}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 110149632

約数和(自身を除く): 28182439

約数列:

[1, 7, 11, 23, 31, 77, 161, 217, 253, 341, 713, 1493, 1771, 2387, 4991, 7843, 10451, 16423, 34339, 46283, 54901, 114961, 240373, 323981, 377729, 509113, 1064509, 2644103, 3563791, 7451563, 11709599, 81967193]

約数ペア:

[(1, 81967193), (7, 11709599), (11, 7451563), (23, 3563791), (31, 2644103), (77, 1064509), (161, 509113), (217, 377729), (253, 323981), (341, 240373), (713, 114961), (1493, 54901), (1771, 46283), (2387, 34339), (4991, 16423), (7843, 10451)]