20999081376

素因数分解:

$2^5\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{801247}}^1$

素因数の和:801283

約数の個数: 144

約数和(自身を含む): 73496876544

約数和(自身を除く): 52497795168

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 52, 56, 63, 72, 78, 84, 91, 96, 104, 112, 117, 126, 144, 156, 168, 182, 208, 224, 234, 252, 273, 288, 312, 336, 364, 416, 468, 504, 546, 624, 672, 728, 819, 936, 1008, 1092, 1248, 1456, 1638, 1872, 2016, 2184, 2912, 3276, 3744, 4368, 6552, 8736, 13104, 26208, 801247, 1602494, 2403741, 3204988, 4807482, 5608729, 6409976, 7211223, 9614964, 10416211, 11217458, 12819952, 14422446, 16826187, 19229928, 20832422, 22434916, 25639904, 28844892, 31248633, 33652374, 38459856, 41664844, 44869832, 50478561, 57689784, 62497266, 67304748, 72913477, 76919712, 83329688, 89739664, 93745899, 100957122, 115379568, 124994532, 134609496, 145826954, 166659376, 179479328, 187491798, 201914244, 218740431, 230759136, 249989064, 269218992, 291653908, 333318752, 374983596, 403828488, 437480862, 499978128, 538437984, 583307816, 656221293, 749967192, 807656976, 874961724, 999956256, 1166615632, 1312442586, 1499934384, 1615313952, 1749923448, 2333231264, 2624885172, 2999868768, 3499846896, 5249770344, 6999693792, 10499540688, 20999081376]

約数ペア:

[(1, 20999081376), (2, 10499540688), (3, 6999693792), (4, 5249770344), (6, 3499846896), (7, 2999868768), (8, 2624885172), (9, 2333231264), (12, 1749923448), (13, 1615313952), (14, 1499934384), (16, 1312442586), (18, 1166615632), (21, 999956256), (24, 874961724), (26, 807656976), (28, 749967192), (32, 656221293), (36, 583307816), (39, 538437984), (42, 499978128), (48, 437480862), (52, 403828488), (56, 374983596), (63, 333318752), (72, 291653908), (78, 269218992), (84, 249989064), (91, 230759136), (96, 218740431), (104, 201914244), (112, 187491798), (117, 179479328), (126, 166659376), (144, 145826954), (156, 134609496), (168, 124994532), (182, 115379568), (208, 100957122), (224, 93745899), (234, 89739664), (252, 83329688), (273, 76919712), (288, 72913477), (312, 67304748), (336, 62497266), (364, 57689784), (416, 50478561), (468, 44869832), (504, 41664844), (546, 38459856), (624, 33652374), (672, 31248633), (728, 28844892), (819, 25639904), (936, 22434916), (1008, 20832422), (1092, 19229928), (1248, 16826187), (1456, 14422446), (1638, 12819952), (1872, 11217458), (2016, 10416211), (2184, 9614964), (2912, 7211223), (3276, 6409976), (3744, 5608729), (4368, 4807482), (6552, 3204988), (8736, 2403741), (13104, 1602494), (26208, 801247)]