311212

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{643}}^1$

素因数の和:669

約数の個数: 18

約数和(自身を含む): 599564

約数和(自身を除く): 288352

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 643, 1286, 2572, 7073, 14146, 28292, 77803, 155606, 311212]

約数ペア:

[(1, 311212), (2, 155606), (4, 77803), (11, 28292), (22, 14146), (44, 7073), (121, 2572), (242, 1286), (484, 643)]