18910976

素因数分解:

$2^8\times 7^1\times {\mathrm{61}}^1\times {\mathrm{173}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 44101344

約数和(自身を除く): 25190368

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 64, 112, 122, 128, 173, 224, 244, 256, 346, 427, 448, 488, 692, 854, 896, 976, 1211, 1384, 1708, 1792, 1952, 2422, 2768, 3416, 3904, 4844, 5536, 6832, 7808, 9688, 10553, 11072, 13664, 15616, 19376, 21106, 22144, 27328, 38752, 42212, 44288, 54656, 73871, 77504, 84424, 109312, 147742, 155008, 168848, 295484, 310016, 337696, 590968, 675392, 1181936, 1350784, 2363872, 2701568, 4727744, 9455488, 18910976]

約数ペア:

[(1, 18910976), (2, 9455488), (4, 4727744), (7, 2701568), (8, 2363872), (14, 1350784), (16, 1181936), (28, 675392), (32, 590968), (56, 337696), (61, 310016), (64, 295484), (112, 168848), (122, 155008), (128, 147742), (173, 109312), (224, 84424), (244, 77504), (256, 73871), (346, 54656), (427, 44288), (448, 42212), (488, 38752), (692, 27328), (854, 22144), (896, 21106), (976, 19376), (1211, 15616), (1384, 13664), (1708, 11072), (1792, 10553), (1952, 9688), (2422, 7808), (2768, 6832), (3416, 5536), (3904, 4844)]