542321997

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{71537}}^1$

素因数の和:71585

約数の個数: 24

約数和(自身を含む): 872191296

約数和(自身を除く): 329869299

約数列:

[1, 3, 7, 19, 21, 57, 133, 361, 399, 1083, 2527, 7581, 71537, 214611, 500759, 1359203, 1502277, 4077609, 9514421, 25824857, 28543263, 77474571, 180773999, 542321997]

約数ペア:

[(1, 542321997), (3, 180773999), (7, 77474571), (19, 28543263), (21, 25824857), (57, 9514421), (133, 4077609), (361, 1502277), (399, 1359203), (1083, 500759), (2527, 214611), (7581, 71537)]