20976759

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{1987}}^1$

素因数の和:2036

約数の個数: 32

約数和(自身を含む): 34352640

約数和(自身を除く): 13375881

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 153, 207, 391, 459, 621, 1173, 1987, 3519, 5961, 10557, 17883, 33779, 45701, 53649, 101337, 137103, 304011, 411309, 776917, 912033, 1233927, 2330751, 6992253, 20976759]

約数ペア:

[(1, 20976759), (3, 6992253), (9, 2330751), (17, 1233927), (23, 912033), (27, 776917), (51, 411309), (69, 304011), (153, 137103), (207, 101337), (391, 53649), (459, 45701), (621, 33779), (1173, 17883), (1987, 10557), (3519, 5961)]