20090422

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{6971}}^1$

素因数の和:7115

約数の個数: 16

約数和(自身を含む): 33130944

約数和(自身を除く): 13040522

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 6971, 13942, 76681, 153362, 913201, 1826402, 10045211, 20090422]

約数ペア:

[(1, 20090422), (2, 10045211), (11, 1826402), (22, 913201), (131, 153362), (262, 76681), (1441, 13942), (2882, 6971)]