17938557

素因数分解:

$3^3\times 7^3\times {\mathrm{13}}^1\times {\mathrm{149}}^1$

素因数の和:192

約数の個数: 64

約数和(自身を含む): 33600000

約数和(自身を除く): 15661443

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 49, 63, 91, 117, 147, 149, 189, 273, 343, 351, 441, 447, 637, 819, 1029, 1043, 1323, 1341, 1911, 1937, 2457, 3087, 3129, 4023, 4459, 5733, 5811, 7301, 9261, 9387, 13377, 13559, 17199, 17433, 21903, 28161, 40131, 40677, 51107, 52299, 65709, 94913, 120393, 122031, 153321, 197127, 284739, 366093, 459963, 664391, 854217, 1379889, 1993173, 2562651, 5979519, 17938557]

約数ペア:

[(1, 17938557), (3, 5979519), (7, 2562651), (9, 1993173), (13, 1379889), (21, 854217), (27, 664391), (39, 459963), (49, 366093), (63, 284739), (91, 197127), (117, 153321), (147, 122031), (149, 120393), (189, 94913), (273, 65709), (343, 52299), (351, 51107), (441, 40677), (447, 40131), (637, 28161), (819, 21903), (1029, 17433), (1043, 17199), (1323, 13559), (1341, 13377), (1911, 9387), (1937, 9261), (2457, 7301), (3087, 5811), (3129, 5733), (4023, 4459)]