21641067

素因数分解:

$3^3\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1709}}^1$

素因数の和:1792

約数の個数: 32

約数和(自身を含む): 37209600

約数和(自身を除く): 15568533

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 189, 201, 469, 603, 1407, 1709, 1809, 4221, 5127, 11963, 12663, 15381, 35889, 46143, 107667, 114503, 323001, 343509, 801521, 1030527, 2404563, 3091581, 7213689, 21641067]

約数ペア:

[(1, 21641067), (3, 7213689), (7, 3091581), (9, 2404563), (21, 1030527), (27, 801521), (63, 343509), (67, 323001), (189, 114503), (201, 107667), (469, 46143), (603, 35889), (1407, 15381), (1709, 12663), (1809, 11963), (4221, 5127)]