20121869079

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{393551}}^1$

素因数の和:393612

約数の個数: 48

約数和(自身を含む): 34380702720

約数和(自身を除く): 14258833641

約数列:

[1, 3, 9, 13, 19, 23, 39, 57, 69, 117, 171, 207, 247, 299, 437, 741, 897, 1311, 2223, 2691, 3933, 5681, 17043, 51129, 393551, 1180653, 3541959, 5116163, 7477469, 9051673, 15348489, 22432407, 27155019, 46045467, 67297221, 81465057, 97207097, 117671749, 171981787, 291621291, 353015247, 515945361, 874863873, 1059045741, 1547836083, 2235763231, 6707289693, 20121869079]

約数ペア:

[(1, 20121869079), (3, 6707289693), (9, 2235763231), (13, 1547836083), (19, 1059045741), (23, 874863873), (39, 515945361), (57, 353015247), (69, 291621291), (117, 171981787), (171, 117671749), (207, 97207097), (247, 81465057), (299, 67297221), (437, 46045467), (741, 27155019), (897, 22432407), (1311, 15348489), (2223, 9051673), (2691, 7477469), (3933, 5116163), (5681, 3541959), (17043, 1180653), (51129, 393551)]