551717721

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1259}}^1$

素因数の和:1390

約数の個数: 48

約数和(自身を含む): 872726400

約数和(自身を除く): 321008679

約数列:

[1, 3, 9, 23, 29, 69, 73, 87, 207, 219, 261, 657, 667, 1259, 1679, 2001, 2117, 3777, 5037, 6003, 6351, 11331, 15111, 19053, 28957, 36511, 48691, 86871, 91907, 109533, 146073, 260613, 275721, 328599, 438219, 827163, 839753, 2113861, 2519259, 2665303, 6341583, 7557777, 7995909, 19024749, 23987727, 61301969, 183905907, 551717721]

約数ペア:

[(1, 551717721), (3, 183905907), (9, 61301969), (23, 23987727), (29, 19024749), (69, 7995909), (73, 7557777), (87, 6341583), (207, 2665303), (219, 2519259), (261, 2113861), (657, 839753), (667, 827163), (1259, 438219), (1679, 328599), (2001, 275721), (2117, 260613), (3777, 146073), (5037, 109533), (6003, 91907), (6351, 86871), (11331, 48691), (15111, 36511), (19053, 28957)]