81136517

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1789}}^1$

素因数の和:1857

約数の個数: 32

約数和(自身を含む): 109977600

約数和(自身を除く): 28841083

約数列:

[1, 7, 11, 19, 31, 77, 133, 209, 217, 341, 589, 1463, 1789, 2387, 4123, 6479, 12523, 19679, 33991, 45353, 55459, 137753, 237937, 373901, 388213, 610049, 1053721, 2617307, 4270343, 7376047, 11590931, 81136517]

約数ペア:

[(1, 81136517), (7, 11590931), (11, 7376047), (19, 4270343), (31, 2617307), (77, 1053721), (133, 610049), (209, 388213), (217, 373901), (341, 237937), (589, 137753), (1463, 55459), (1789, 45353), (2387, 33991), (4123, 19679), (6479, 12523)]