28256121

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{523}}^1$

素因数の和:587

約数の個数: 40

約数和(自身を含む): 45650880

約数和(自身を除く): 17394759

約数列:

[1, 3, 9, 23, 27, 29, 69, 81, 87, 207, 261, 523, 621, 667, 783, 1569, 1863, 2001, 2349, 4707, 6003, 12029, 14121, 15167, 18009, 36087, 42363, 45501, 54027, 108261, 136503, 324783, 348841, 409509, 974349, 1046523, 1228527, 3139569, 9418707, 28256121]

約数ペア:

[(1, 28256121), (3, 9418707), (9, 3139569), (23, 1228527), (27, 1046523), (29, 974349), (69, 409509), (81, 348841), (87, 324783), (207, 136503), (261, 108261), (523, 54027), (621, 45501), (667, 42363), (783, 36087), (1569, 18009), (1863, 15167), (2001, 14121), (2349, 12029), (4707, 6003)]