20178076779

素因数分解:

$3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{21529}}^1$

素因数の和:21599

約数の個数: 96

約数和(自身を含む): 37617216000

約数和(自身を除く): 17439139221

約数列:

[1, 3, 7, 9, 19, 21, 27, 29, 57, 63, 81, 87, 133, 171, 189, 203, 243, 261, 399, 513, 551, 567, 609, 783, 1197, 1539, 1653, 1701, 1827, 2349, 3591, 3857, 4617, 4959, 5481, 7047, 10773, 11571, 14877, 16443, 21529, 32319, 34713, 44631, 49329, 64587, 104139, 133893, 150703, 193761, 312417, 409051, 452109, 581283, 624341, 937251, 1227153, 1356327, 1743849, 1873023, 2863357, 3681459, 4068981, 4370387, 5231547, 5619069, 8590071, 11044377, 11862479, 12206943, 13111161, 16857207, 25770213, 33133131, 35587437, 36620829, 39333483, 50571621, 77310639, 83037353, 99399393, 106762311, 118000449, 151714863, 231931917, 249112059, 320286933, 354001347, 695795751, 747336177, 960860799, 1062004041, 2242008531, 2882582397, 6726025593, 20178076779]

約数ペア:

[(1, 20178076779), (3, 6726025593), (7, 2882582397), (9, 2242008531), (19, 1062004041), (21, 960860799), (27, 747336177), (29, 695795751), (57, 354001347), (63, 320286933), (81, 249112059), (87, 231931917), (133, 151714863), (171, 118000449), (189, 106762311), (203, 99399393), (243, 83037353), (261, 77310639), (399, 50571621), (513, 39333483), (551, 36620829), (567, 35587437), (609, 33133131), (783, 25770213), (1197, 16857207), (1539, 13111161), (1653, 12206943), (1701, 11862479), (1827, 11044377), (2349, 8590071), (3591, 5619069), (3857, 5231547), (4617, 4370387), (4959, 4068981), (5481, 3681459), (7047, 2863357), (10773, 1873023), (11571, 1743849), (14877, 1356327), (16443, 1227153), (21529, 937251), (32319, 624341), (34713, 581283), (44631, 452109), (49329, 409051), (64587, 312417), (104139, 193761), (133893, 150703)]