20776988673

素因数分解:

$3^5\times 7^4\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:431

約数の個数: 120

約数和(自身を含む): 36704304000

約数和(自身を除く): 15927315327

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 149, 189, 239, 243, 343, 441, 447, 567, 717, 1029, 1043, 1323, 1341, 1673, 1701, 2151, 2401, 3087, 3129, 3969, 4023, 5019, 6453, 7203, 7301, 9261, 9387, 11711, 11907, 12069, 15057, 19359, 21609, 21903, 27783, 28161, 35133, 35611, 36207, 45171, 51107, 58077, 64827, 65709, 81977, 83349, 84483, 105399, 106833, 135513, 153321, 194481, 197127, 245931, 249277, 253449, 316197, 320499, 357749, 406539, 459963, 573839, 583443, 591381, 737793, 747831, 948591, 961497, 1073247, 1379889, 1721517, 1744939, 1774143, 2213379, 2243493, 2845773, 2884491, 3219741, 4139667, 5164551, 5234817, 6640137, 6730479, 8653473, 9659223, 12214573, 12419001, 15493653, 15704451, 19920411, 20191437, 28977669, 36643719, 46480959, 47113353, 60574311, 85502011, 86933007, 109931157, 139442877, 141340059, 256506033, 329793471, 424020177, 769518099, 989380413, 2308554297, 2968141239, 6925662891, 20776988673]

約数ペア:

[(1, 20776988673), (3, 6925662891), (7, 2968141239), (9, 2308554297), (21, 989380413), (27, 769518099), (49, 424020177), (63, 329793471), (81, 256506033), (147, 141340059), (149, 139442877), (189, 109931157), (239, 86933007), (243, 85502011), (343, 60574311), (441, 47113353), (447, 46480959), (567, 36643719), (717, 28977669), (1029, 20191437), (1043, 19920411), (1323, 15704451), (1341, 15493653), (1673, 12419001), (1701, 12214573), (2151, 9659223), (2401, 8653473), (3087, 6730479), (3129, 6640137), (3969, 5234817), (4023, 5164551), (5019, 4139667), (6453, 3219741), (7203, 2884491), (7301, 2845773), (9261, 2243493), (9387, 2213379), (11711, 1774143), (11907, 1744939), (12069, 1721517), (15057, 1379889), (19359, 1073247), (21609, 961497), (21903, 948591), (27783, 747831), (28161, 737793), (35133, 591381), (35611, 583443), (36207, 573839), (45171, 459963), (51107, 406539), (58077, 357749), (64827, 320499), (65709, 316197), (81977, 253449), (83349, 249277), (84483, 245931), (105399, 197127), (106833, 194481), (135513, 153321)]