19610721

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{55871}}^1$

素因数の和:55893

約数の個数: 16

約数和(自身を含む): 31288320

約数和(自身を除く): 11677599

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 55871, 167613, 502839, 726323, 1508517, 2178969, 6536907, 19610721]

約数ペア:

[(1, 19610721), (3, 6536907), (9, 2178969), (13, 1508517), (27, 726323), (39, 502839), (117, 167613), (351, 55871)]