20551124

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42461}}^1$

素因数の和:42487

約数の個数: 18

約数和(自身を含む): 39532122

約数和(自身を除く): 18980998

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42461, 84922, 169844, 467071, 934142, 1868284, 5137781, 10275562, 20551124]

約数ペア:

[(1, 20551124), (2, 10275562), (4, 5137781), (11, 1868284), (22, 934142), (44, 467071), (121, 169844), (242, 84922), (484, 42461)]