21271206495

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{10399}}^1$

素因数の和:10466

約数の個数: 144

約数和(自身を含む): 45413222400

約数和(自身を除く): 24142015905

約数列:

[1, 3, 5, 7, 11, 15, 21, 23, 33, 35, 49, 55, 69, 77, 105, 115, 121, 147, 161, 165, 231, 245, 253, 345, 363, 385, 483, 539, 605, 735, 759, 805, 847, 1127, 1155, 1265, 1617, 1771, 1815, 2415, 2541, 2695, 2783, 3381, 3795, 4235, 5313, 5635, 5929, 8085, 8349, 8855, 10399, 12397, 12705, 13915, 16905, 17787, 19481, 26565, 29645, 31197, 37191, 41745, 51995, 58443, 61985, 72793, 88935, 97405, 114389, 136367, 155985, 185955, 218379, 239177, 292215, 343167, 363965, 409101, 509551, 571945, 681835, 717531, 800723, 1091895, 1195885, 1258279, 1528653, 1674239, 1715835, 2045505, 2402169, 2547755, 2630947, 3587655, 3774837, 4003615, 5022717, 5605061, 6291395, 7643265, 7892841, 8371195, 8807953, 11719673, 12010845, 13154735, 16815183, 18416629, 18874185, 25113585, 26423859, 28025305, 28940417, 35159019, 39464205, 44039765, 55249887, 58598365, 61655671, 84075915, 86821251, 92083145, 128916403, 132119295, 144702085, 175795095, 184967013, 202582919, 276249435, 308278355, 386749209, 434106255, 607748757, 644582015, 924835065, 1012914595, 1418080433, 1933746045, 3038743785, 4254241299, 7090402165, 21271206495]

約数ペア:

[(1, 21271206495), (3, 7090402165), (5, 4254241299), (7, 3038743785), (11, 1933746045), (15, 1418080433), (21, 1012914595), (23, 924835065), (33, 644582015), (35, 607748757), (49, 434106255), (55, 386749209), (69, 308278355), (77, 276249435), (105, 202582919), (115, 184967013), (121, 175795095), (147, 144702085), (161, 132119295), (165, 128916403), (231, 92083145), (245, 86821251), (253, 84075915), (345, 61655671), (363, 58598365), (385, 55249887), (483, 44039765), (539, 39464205), (605, 35159019), (735, 28940417), (759, 28025305), (805, 26423859), (847, 25113585), (1127, 18874185), (1155, 18416629), (1265, 16815183), (1617, 13154735), (1771, 12010845), (1815, 11719673), (2415, 8807953), (2541, 8371195), (2695, 7892841), (2783, 7643265), (3381, 6291395), (3795, 5605061), (4235, 5022717), (5313, 4003615), (5635, 3774837), (5929, 3587655), (8085, 2630947), (8349, 2547755), (8855, 2402169), (10399, 2045505), (12397, 1715835), (12705, 1674239), (13915, 1528653), (16905, 1258279), (17787, 1195885), (19481, 1091895), (26565, 800723), (29645, 717531), (31197, 681835), (37191, 571945), (41745, 509551), (51995, 409101), (58443, 363965), (61985, 343167), (72793, 292215), (88935, 239177), (97405, 218379), (114389, 185955), (136367, 155985)]