18994431

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{811}}^1$

素因数の和:1062

約数の個数: 16

約数和(自身を含む): 26165888

約数和(自身を除く): 7171457

約数列:

[1, 3, 37, 111, 211, 633, 811, 2433, 7807, 23421, 30007, 90021, 171121, 513363, 6331477, 18994431]

約数ペア:

[(1, 18994431), (3, 6331477), (37, 513363), (111, 171121), (211, 90021), (633, 30007), (811, 23421), (2433, 7807)]