20866131

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{523}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 36621312

約数和(自身を除く): 15755181

約数列:

[1, 3, 9, 11, 13, 31, 33, 39, 93, 99, 117, 143, 279, 341, 403, 429, 523, 1023, 1209, 1287, 1569, 3069, 3627, 4433, 4707, 5753, 6799, 13299, 16213, 17259, 20397, 39897, 48639, 51777, 61191, 74789, 145917, 178343, 210769, 224367, 535029, 632307, 673101, 1605087, 1896921, 2318459, 6955377, 20866131]

約数ペア:

[(1, 20866131), (3, 6955377), (9, 2318459), (11, 1896921), (13, 1605087), (31, 673101), (33, 632307), (39, 535029), (93, 224367), (99, 210769), (117, 178343), (143, 145917), (279, 74789), (341, 61191), (403, 51777), (429, 48639), (523, 39897), (1023, 20397), (1209, 17259), (1287, 16213), (1569, 13299), (3069, 6799), (3627, 5753), (4433, 4707)]