207781442

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{8501}}^1$

素因数の和:8626

約数の個数: 24

約数和(自身を含む): 346014396

約数和(自身を除く): 138232954

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 1111, 2222, 8501, 12221, 17002, 24442, 93511, 187022, 858601, 1028621, 1717202, 2057242, 9444611, 18889222, 103890721, 207781442]

約数ペア:

[(1, 207781442), (2, 103890721), (11, 18889222), (22, 9444611), (101, 2057242), (121, 1717202), (202, 1028621), (242, 858601), (1111, 187022), (2222, 93511), (8501, 24442), (12221, 17002)]