19939203

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1237}}^1$

素因数の和:1448

約数の個数: 20

約数和(自身を含む): 29959600

約数和(自身を除く): 10020397

約数列:

[1, 3, 9, 27, 81, 199, 597, 1237, 1791, 3711, 5373, 11133, 16119, 33399, 100197, 246163, 738489, 2215467, 6646401, 19939203]

約数ペア:

[(1, 19939203), (3, 6646401), (9, 2215467), (27, 738489), (81, 246163), (199, 100197), (597, 33399), (1237, 16119), (1791, 11133), (3711, 5373)]