20911338

素因数分解:

$2^1\times 3^3\times 7^3\times {\mathrm{1129}}^1$

素因数の和:1161

約数の個数: 64

約数和(自身を含む): 54240000

約数和(自身を除く): 33328662

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 98, 126, 147, 189, 294, 343, 378, 441, 686, 882, 1029, 1129, 1323, 2058, 2258, 2646, 3087, 3387, 6174, 6774, 7903, 9261, 10161, 15806, 18522, 20322, 23709, 30483, 47418, 55321, 60966, 71127, 110642, 142254, 165963, 213381, 331926, 387247, 426762, 497889, 774494, 995778, 1161741, 1493667, 2323482, 2987334, 3485223, 6970446, 10455669, 20911338]

約数ペア:

[(1, 20911338), (2, 10455669), (3, 6970446), (6, 3485223), (7, 2987334), (9, 2323482), (14, 1493667), (18, 1161741), (21, 995778), (27, 774494), (42, 497889), (49, 426762), (54, 387247), (63, 331926), (98, 213381), (126, 165963), (147, 142254), (189, 110642), (294, 71127), (343, 60966), (378, 55321), (441, 47418), (686, 30483), (882, 23709), (1029, 20322), (1129, 18522), (1323, 15806), (2058, 10161), (2258, 9261), (2646, 7903), (3087, 6774), (3387, 6174)]