20254779

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 12767301

約数列:

[1, 3, 9, 19, 27, 41, 57, 81, 107, 123, 171, 243, 321, 369, 513, 779, 963, 1107, 1539, 2033, 2337, 2889, 3321, 4387, 4617, 6099, 7011, 8667, 9963, 13161, 18297, 21033, 26001, 39483, 54891, 63099, 83353, 118449, 164673, 189297, 250059, 355347, 494019, 750177, 1066041, 2250531, 6751593, 20254779]

約数ペア:

[(1, 20254779), (3, 6751593), (9, 2250531), (19, 1066041), (27, 750177), (41, 494019), (57, 355347), (81, 250059), (107, 189297), (123, 164673), (171, 118449), (243, 83353), (321, 63099), (369, 54891), (513, 39483), (779, 26001), (963, 21033), (1107, 18297), (1539, 13161), (2033, 9963), (2337, 8667), (2889, 7011), (3321, 6099), (4387, 4617)]