20518137

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{5801}}^1$

素因数の和:5941

約数の個数: 16

約数和(自身を含む): 30634560

約数和(自身を除く): 10116423

約数列:

[1, 3, 9, 27, 131, 393, 1179, 3537, 5801, 17403, 52209, 156627, 759931, 2279793, 6839379, 20518137]

約数ペア:

[(1, 20518137), (3, 6839379), (9, 2279793), (27, 759931), (131, 156627), (393, 52209), (1179, 17403), (3537, 5801)]