18489861

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6871}}^1$

素因数の和:6913

約数の個数: 24

約数和(自身を含む): 30016896

約数和(自身を除く): 11527035

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 6871, 20613, 61839, 89323, 158033, 267969, 474099, 803907, 1422297, 2054429, 6163287, 18489861]

約数ペア:

[(1, 18489861), (3, 6163287), (9, 2054429), (13, 1422297), (23, 803907), (39, 474099), (69, 267969), (117, 158033), (207, 89323), (299, 61839), (897, 20613), (2691, 6871)]