20956467

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{3853}}^1$

素因数の和:3907

約数の個数: 24

約数和(自身を含む): 33391056

約数和(自身を除く): 12434589

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 3853, 5439, 11559, 26971, 80913, 142561, 188797, 427683, 566391, 997927, 2993781, 6985489, 20956467]

約数ペア:

[(1, 20956467), (3, 6985489), (7, 2993781), (21, 997927), (37, 566391), (49, 427683), (111, 188797), (147, 142561), (259, 80913), (777, 26971), (1813, 11559), (3853, 5439)]