19810899

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{14387}}^1$

素因数の和:14416

約数の個数: 20

約数和(自身を含む): 31337064

約数和(自身を除く): 11526165

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 14387, 43161, 129483, 244579, 388449, 733737, 1165347, 2201211, 6603633, 19810899]

約数ペア:

[(1, 19810899), (3, 6603633), (9, 2201211), (17, 1165347), (27, 733737), (51, 388449), (81, 244579), (153, 129483), (459, 43161), (1377, 14387)]