19904859

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{6301}}^1$

素因数の和:6329

約数の個数: 24

約数和(自身を含む): 32114992

約数和(自身を除く): 12210133

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 6301, 18903, 56709, 81913, 170127, 245739, 510381, 737217, 1531143, 2211651, 6634953, 19904859]

約数ペア:

[(1, 19904859), (3, 6634953), (9, 2211651), (13, 1531143), (27, 737217), (39, 510381), (81, 245739), (117, 170127), (243, 81913), (351, 56709), (1053, 18903), (3159, 6301)]