208604

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{431}}^1$

素因数の和:457

約数の個数: 18

約数和(自身を含む): 402192

約数和(自身を除く): 193588

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 431, 484, 862, 1724, 4741, 9482, 18964, 52151, 104302, 208604]

約数ペア:

[(1, 208604), (2, 104302), (4, 52151), (11, 18964), (22, 9482), (44, 4741), (121, 1724), (242, 862), (431, 484)]