21276528

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4871}}^1$

素因数の和:4902

約数の個数: 80

約数和(自身を含む): 67662336

約数和(自身を除く): 46385808

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 52, 56, 78, 84, 91, 104, 112, 156, 168, 182, 208, 273, 312, 336, 364, 546, 624, 728, 1092, 1456, 2184, 4368, 4871, 9742, 14613, 19484, 29226, 34097, 38968, 58452, 63323, 68194, 77936, 102291, 116904, 126646, 136388, 189969, 204582, 233808, 253292, 272776, 379938, 409164, 443261, 506584, 545552, 759876, 818328, 886522, 1013168, 1329783, 1519752, 1636656, 1773044, 2659566, 3039504, 3546088, 5319132, 7092176, 10638264, 21276528]

約数ペア:

[(1, 21276528), (2, 10638264), (3, 7092176), (4, 5319132), (6, 3546088), (7, 3039504), (8, 2659566), (12, 1773044), (13, 1636656), (14, 1519752), (16, 1329783), (21, 1013168), (24, 886522), (26, 818328), (28, 759876), (39, 545552), (42, 506584), (48, 443261), (52, 409164), (56, 379938), (78, 272776), (84, 253292), (91, 233808), (104, 204582), (112, 189969), (156, 136388), (168, 126646), (182, 116904), (208, 102291), (273, 77936), (312, 68194), (336, 63323), (364, 58452), (546, 38968), (624, 34097), (728, 29226), (1092, 19484), (1456, 14613), (2184, 9742), (4368, 4871)]