20713805

素因数分解:

$5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{1447}}^1$

素因数の和:1868

約数の個数: 16

約数和(自身を含む): 28496640

約数和(自身を除く): 7782835

約数列:

[1, 5, 7, 35, 409, 1447, 2045, 2863, 7235, 10129, 14315, 50645, 591823, 2959115, 4142761, 20713805]

約数ペア:

[(1, 20713805), (5, 4142761), (7, 2959115), (35, 591823), (409, 50645), (1447, 14315), (2045, 10129), (2863, 7235)]