21196593

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 16128207

約数列:

[1, 3, 9, 11, 23, 27, 29, 33, 69, 87, 99, 107, 207, 253, 261, 297, 319, 321, 621, 667, 759, 783, 957, 963, 1177, 2001, 2277, 2461, 2871, 2889, 3103, 3531, 6003, 6831, 7337, 7383, 8613, 9309, 10593, 18009, 22011, 22149, 27071, 27927, 31779, 34133, 66033, 66447, 71369, 81213, 83781, 102399, 198099, 214107, 243639, 307197, 642321, 730917, 785059, 921591, 1926963, 2355177, 7065531, 21196593]

約数ペア:

[(1, 21196593), (3, 7065531), (9, 2355177), (11, 1926963), (23, 921591), (27, 785059), (29, 730917), (33, 642321), (69, 307197), (87, 243639), (99, 214107), (107, 198099), (207, 102399), (253, 83781), (261, 81213), (297, 71369), (319, 66447), (321, 66033), (621, 34133), (667, 31779), (759, 27927), (783, 27071), (957, 22149), (963, 22011), (1177, 18009), (2001, 10593), (2277, 9309), (2461, 8613), (2871, 7383), (2889, 7337), (3103, 6831), (3531, 6003)]