20508964

素因数分解:

$2^2\times 7^1\times {\mathrm{563}}^1\times {\mathrm{1301}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 41122368

約数和(自身を除く): 20613404

約数列:

[1, 2, 4, 7, 14, 28, 563, 1126, 1301, 2252, 2602, 3941, 5204, 7882, 9107, 15764, 18214, 36428, 732463, 1464926, 2929852, 5127241, 10254482, 20508964]

約数ペア:

[(1, 20508964), (2, 10254482), (4, 5127241), (7, 2929852), (14, 1464926), (28, 732463), (563, 36428), (1126, 18214), (1301, 15764), (2252, 9107), (2602, 7882), (3941, 5204)]