21381103128

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{1361}}^1\times {\mathrm{8501}}^1$

素因数の和:9889

約数の個数: 128

約数和(自身を含む): 66699210240

約数和(自身を除く): 45318107112

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 21, 22, 24, 28, 33, 42, 44, 56, 66, 77, 84, 88, 132, 154, 168, 231, 264, 308, 462, 616, 924, 1361, 1848, 2722, 4083, 5444, 8166, 8501, 9527, 10888, 14971, 16332, 17002, 19054, 25503, 28581, 29942, 32664, 34004, 38108, 44913, 51006, 57162, 59507, 59884, 68008, 76216, 89826, 93511, 102012, 104797, 114324, 119014, 119768, 178521, 179652, 187022, 204024, 209594, 228648, 238028, 280533, 314391, 357042, 359304, 374044, 419188, 476056, 561066, 628782, 654577, 714084, 748088, 838376, 1122132, 1257564, 1309154, 1428168, 1963731, 2244264, 2515128, 2618308, 3927462, 5236616, 7854924, 11569861, 15709848, 23139722, 34709583, 46279444, 69419166, 80989027, 92558888, 127268471, 138838332, 161978054, 242967081, 254536942, 277676664, 323956108, 381805413, 485934162, 509073884, 647912216, 763610826, 890879297, 971868324, 1018147768, 1527221652, 1781758594, 1943736648, 2672637891, 3054443304, 3563517188, 5345275782, 7127034376, 10690551564, 21381103128]

約数ペア:

[(1, 21381103128), (2, 10690551564), (3, 7127034376), (4, 5345275782), (6, 3563517188), (7, 3054443304), (8, 2672637891), (11, 1943736648), (12, 1781758594), (14, 1527221652), (21, 1018147768), (22, 971868324), (24, 890879297), (28, 763610826), (33, 647912216), (42, 509073884), (44, 485934162), (56, 381805413), (66, 323956108), (77, 277676664), (84, 254536942), (88, 242967081), (132, 161978054), (154, 138838332), (168, 127268471), (231, 92558888), (264, 80989027), (308, 69419166), (462, 46279444), (616, 34709583), (924, 23139722), (1361, 15709848), (1848, 11569861), (2722, 7854924), (4083, 5236616), (5444, 3927462), (8166, 2618308), (8501, 2515128), (9527, 2244264), (10888, 1963731), (14971, 1428168), (16332, 1309154), (17002, 1257564), (19054, 1122132), (25503, 838376), (28581, 748088), (29942, 714084), (32664, 654577), (34004, 628782), (38108, 561066), (44913, 476056), (51006, 419188), (57162, 374044), (59507, 359304), (59884, 357042), (68008, 314391), (76216, 280533), (89826, 238028), (93511, 228648), (102012, 209594), (104797, 204024), (114324, 187022), (119014, 179652), (119768, 178521)]