19518489

素因数分解:

$3^5\times {\mathrm{47}}^1\times {\mathrm{1709}}^1$

素因数の和:1771

約数の個数: 24

約数和(自身を含む): 29877120

約数和(自身を除く): 10358631

約数列:

[1, 3, 9, 27, 47, 81, 141, 243, 423, 1269, 1709, 3807, 5127, 11421, 15381, 46143, 80323, 138429, 240969, 415287, 722907, 2168721, 6506163, 19518489]

約数ペア:

[(1, 19518489), (3, 6506163), (9, 2168721), (27, 722907), (47, 415287), (81, 240969), (141, 138429), (243, 80323), (423, 46143), (1269, 15381), (1709, 11421), (3807, 5127)]