20265868

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7027}}^1$

素因数の和:7141

約数の個数: 24

約数和(自身を含む): 40931072

約数和(自身を除く): 20665204

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7027, 14054, 28108, 49189, 98378, 196756, 723781, 1447562, 2895124, 5066467, 10132934, 20265868]

約数ペア:

[(1, 20265868), (2, 10132934), (4, 5066467), (7, 2895124), (14, 1447562), (28, 723781), (103, 196756), (206, 98378), (412, 49189), (721, 28108), (1442, 14054), (2884, 7027)]