18883707

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{673}}^1$

素因数の和:922

約数の個数: 16

約数和(自身を含む): 25881600

約数和(自身を除く): 6997893

約数列:

[1, 3, 47, 141, 199, 597, 673, 2019, 9353, 28059, 31631, 94893, 133927, 401781, 6294569, 18883707]

約数ペア:

[(1, 18883707), (3, 6294569), (47, 401781), (141, 133927), (199, 94893), (597, 31631), (673, 28059), (2019, 9353)]