21128292528

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{3643}}^1$

素因数の和:4123

約数の個数: 160

約数和(自身を含む): 64069565952

約数和(自身を除く): 42941273424

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 41, 42, 48, 56, 82, 84, 112, 123, 164, 168, 246, 287, 328, 336, 421, 492, 574, 656, 842, 861, 984, 1148, 1263, 1684, 1722, 1968, 2296, 2526, 2947, 3368, 3444, 3643, 4592, 5052, 5894, 6736, 6888, 7286, 8841, 10104, 10929, 11788, 13776, 14572, 17261, 17682, 20208, 21858, 23576, 25501, 29144, 34522, 35364, 43716, 47152, 51002, 51783, 58288, 69044, 70728, 76503, 87432, 102004, 103566, 120827, 138088, 141456, 149363, 153006, 174864, 204008, 207132, 241654, 276176, 298726, 306012, 362481, 408016, 414264, 448089, 483308, 597452, 612024, 724962, 828528, 896178, 966616, 1045541, 1194904, 1224048, 1449924, 1533703, 1792356, 1933232, 2091082, 2389808, 2899848, 3067406, 3136623, 3584712, 4182164, 4601109, 5799696, 6134812, 6273246, 7169424, 8364328, 9202218, 10735921, 12269624, 12546492, 16728656, 18404436, 21471842, 24539248, 25092984, 32207763, 36808872, 42943684, 50185968, 62881823, 64415526, 73617744, 85887368, 125763646, 128831052, 171774736, 188645469, 251527292, 257662104, 377290938, 440172761, 503054584, 515324208, 754581876, 880345522, 1006109168, 1320518283, 1509163752, 1760691044, 2641036566, 3018327504, 3521382088, 5282073132, 7042764176, 10564146264, 21128292528]

約数ペア:

[(1, 21128292528), (2, 10564146264), (3, 7042764176), (4, 5282073132), (6, 3521382088), (7, 3018327504), (8, 2641036566), (12, 1760691044), (14, 1509163752), (16, 1320518283), (21, 1006109168), (24, 880345522), (28, 754581876), (41, 515324208), (42, 503054584), (48, 440172761), (56, 377290938), (82, 257662104), (84, 251527292), (112, 188645469), (123, 171774736), (164, 128831052), (168, 125763646), (246, 85887368), (287, 73617744), (328, 64415526), (336, 62881823), (421, 50185968), (492, 42943684), (574, 36808872), (656, 32207763), (842, 25092984), (861, 24539248), (984, 21471842), (1148, 18404436), (1263, 16728656), (1684, 12546492), (1722, 12269624), (1968, 10735921), (2296, 9202218), (2526, 8364328), (2947, 7169424), (3368, 6273246), (3444, 6134812), (3643, 5799696), (4592, 4601109), (5052, 4182164), (5894, 3584712), (6736, 3136623), (6888, 3067406), (7286, 2899848), (8841, 2389808), (10104, 2091082), (10929, 1933232), (11788, 1792356), (13776, 1533703), (14572, 1449924), (17261, 1224048), (17682, 1194904), (20208, 1045541), (21858, 966616), (23576, 896178), (25501, 828528), (29144, 724962), (34522, 612024), (35364, 597452), (43716, 483308), (47152, 448089), (51002, 414264), (51783, 408016), (58288, 362481), (69044, 306012), (70728, 298726), (76503, 276176), (87432, 241654), (102004, 207132), (103566, 204008), (120827, 174864), (138088, 153006), (141456, 149363)]