81405027

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{701}}^1$

素因数の和:761

約数の個数: 64

約数和(自身を含む): 145566720

約数和(自身を除く): 64161693

約数列:

[1, 3, 9, 11, 17, 23, 27, 33, 51, 69, 99, 153, 187, 207, 253, 297, 391, 459, 561, 621, 701, 759, 1173, 1683, 2103, 2277, 3519, 4301, 5049, 6309, 6831, 7711, 10557, 11917, 12903, 16123, 18927, 23133, 35751, 38709, 48369, 69399, 107253, 116127, 131087, 145107, 177353, 208197, 274091, 321759, 393261, 435321, 532059, 822273, 1179783, 1596177, 2466819, 3015001, 3539349, 4788531, 7400457, 9045003, 27135009, 81405027]

約数ペア:

[(1, 81405027), (3, 27135009), (9, 9045003), (11, 7400457), (17, 4788531), (23, 3539349), (27, 3015001), (33, 2466819), (51, 1596177), (69, 1179783), (99, 822273), (153, 532059), (187, 435321), (207, 393261), (253, 321759), (297, 274091), (391, 208197), (459, 177353), (561, 145107), (621, 131087), (701, 116127), (759, 107253), (1173, 69399), (1683, 48369), (2103, 38709), (2277, 35751), (3519, 23133), (4301, 18927), (5049, 16123), (6309, 12903), (6831, 11917), (7711, 10557)]