20692383

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{631}}^1\times {\mathrm{643}}^1$

素因数の和:1294

約数の個数: 16

約数和(自身を含む): 29304576

約数和(自身を除く): 8612193

約数列:

[1, 3, 17, 51, 631, 643, 1893, 1929, 10727, 10931, 32181, 32793, 405733, 1217199, 6897461, 20692383]

約数ペア:

[(1, 20692383), (3, 6897461), (17, 1217199), (51, 405733), (631, 32793), (643, 32181), (1893, 10931), (1929, 10727)]