19998477

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5683}}^1$

素因数の和:5729

約数の個数: 24

約数和(自身を含む): 31921344

約数和(自身を除く): 11922867

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 5683, 17049, 51147, 96611, 130709, 289833, 392127, 869499, 1176381, 2222053, 6666159, 19998477]

約数ペア:

[(1, 19998477), (3, 6666159), (9, 2222053), (17, 1176381), (23, 869499), (51, 392127), (69, 289833), (153, 130709), (207, 96611), (391, 51147), (1173, 17049), (3519, 5683)]