172666319

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{503}}^1$

素因数の和:647

約数の個数: 32

約数和(自身を含む): 217728000

約数和(自身を除く): 45061681

約数列:

[1, 7, 19, 29, 89, 133, 203, 503, 551, 623, 1691, 2581, 3521, 3857, 9557, 11837, 14587, 18067, 44767, 49039, 66899, 102109, 277153, 313369, 343273, 850573, 1298243, 1940071, 5954011, 9087701, 24666617, 172666319]

約数ペア:

[(1, 172666319), (7, 24666617), (19, 9087701), (29, 5954011), (89, 1940071), (133, 1298243), (203, 850573), (503, 343273), (551, 313369), (623, 277153), (1691, 102109), (2581, 66899), (3521, 49039), (3857, 44767), (9557, 18067), (11837, 14587)]