18996497

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1999}}^1$

素因数の和:2072

約数の個数: 16

約数和(自身を含む): 22176000

約数和(自身を除く): 3179503

約数列:

[1, 13, 17, 43, 221, 559, 731, 1999, 9503, 25987, 33983, 85957, 441779, 1117441, 1461269, 18996497]

約数ペア:

[(1, 18996497), (13, 1461269), (17, 1117441), (43, 441779), (221, 85957), (559, 33983), (731, 25987), (1999, 9503)]