66856724

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{21401}}^1$

素因数の和:21487

約数の個数: 24

約数和(自身を含む): 129439296

約数和(自身を除く): 62582572

約数列:

[1, 2, 4, 11, 22, 44, 71, 142, 284, 781, 1562, 3124, 21401, 42802, 85604, 235411, 470822, 941644, 1519471, 3038942, 6077884, 16714181, 33428362, 66856724]

約数ペア:

[(1, 66856724), (2, 33428362), (4, 16714181), (11, 6077884), (22, 3038942), (44, 1519471), (71, 941644), (142, 470822), (284, 235411), (781, 85604), (1562, 42802), (3124, 21401)]