18520083

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{9941}}^1$

素因数の和:9976

約数の個数: 20

約数和(自身を含む): 28871568

約数和(自身を除く): 10351485

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 9941, 29823, 89469, 228643, 268407, 685929, 805221, 2057787, 6173361, 18520083]

約数ペア:

[(1, 18520083), (3, 6173361), (9, 2057787), (23, 805221), (27, 685929), (69, 268407), (81, 228643), (207, 89469), (621, 29823), (1863, 9941)]