20018439

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{10957}}^1$

素因数の和:10999

約数の個数: 24

約数和(自身を含む): 34188960

約数和(自身を除く): 14170521

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 203, 261, 609, 1827, 10957, 32871, 76699, 98613, 230097, 317753, 690291, 953259, 2224271, 2859777, 6672813, 20018439]

約数ペア:

[(1, 20018439), (3, 6672813), (7, 2859777), (9, 2224271), (21, 953259), (29, 690291), (63, 317753), (87, 230097), (203, 98613), (261, 76699), (609, 32871), (1827, 10957)]