639794771

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{14107}}^1$

素因数の和:14175

約数の個数: 32

約数和(自身を含む): 866795520

約数和(自身を除く): 227000749

約数列:

[1, 7, 11, 19, 31, 77, 133, 209, 217, 341, 589, 1463, 2387, 4123, 6479, 14107, 45353, 98749, 155177, 268033, 437317, 1086239, 1876231, 2948363, 3061219, 4810487, 8309023, 20638541, 33673409, 58163161, 91399253, 639794771]

約数ペア:

[(1, 639794771), (7, 91399253), (11, 58163161), (19, 33673409), (31, 20638541), (77, 8309023), (133, 4810487), (209, 3061219), (217, 2948363), (341, 1876231), (589, 1086239), (1463, 437317), (2387, 268033), (4123, 155177), (6479, 98749), (14107, 45353)]