40740021

素因数分解:

$3^2\times 7^2\times {\mathrm{92381}}^1$

素因数の和:92401

約数の個数: 18

約数和(自身を含む): 68455062

約数和(自身を除く): 27715041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 92381, 277143, 646667, 831429, 1940001, 4526669, 5820003, 13580007, 40740021]

約数ペア:

[(1, 40740021), (3, 13580007), (7, 5820003), (9, 4526669), (21, 1940001), (49, 831429), (63, 646667), (147, 277143), (441, 92381)]