18531968

素因数分解:

$2^7\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:114

約数の個数: 128

約数和(自身を含む): 47752320

約数和(自身を除く): 29220352

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 37, 43, 52, 56, 64, 74, 86, 91, 104, 112, 128, 148, 172, 182, 208, 224, 259, 296, 301, 344, 364, 416, 448, 481, 518, 559, 592, 602, 688, 728, 832, 896, 962, 1036, 1118, 1184, 1204, 1376, 1456, 1591, 1664, 1924, 2072, 2236, 2368, 2408, 2752, 2912, 3182, 3367, 3848, 3913, 4144, 4472, 4736, 4816, 5504, 5824, 6364, 6734, 7696, 7826, 8288, 8944, 9632, 11137, 11648, 12728, 13468, 15392, 15652, 16576, 17888, 19264, 20683, 22274, 25456, 26936, 30784, 31304, 33152, 35776, 38528, 41366, 44548, 50912, 53872, 61568, 62608, 71552, 82732, 89096, 101824, 107744, 125216, 144781, 165464, 178192, 203648, 215488, 250432, 289562, 330928, 356384, 430976, 500864, 579124, 661856, 712768, 1158248, 1323712, 1425536, 2316496, 2647424, 4632992, 9265984, 18531968]

約数ペア:

[(1, 18531968), (2, 9265984), (4, 4632992), (7, 2647424), (8, 2316496), (13, 1425536), (14, 1323712), (16, 1158248), (26, 712768), (28, 661856), (32, 579124), (37, 500864), (43, 430976), (52, 356384), (56, 330928), (64, 289562), (74, 250432), (86, 215488), (91, 203648), (104, 178192), (112, 165464), (128, 144781), (148, 125216), (172, 107744), (182, 101824), (208, 89096), (224, 82732), (259, 71552), (296, 62608), (301, 61568), (344, 53872), (364, 50912), (416, 44548), (448, 41366), (481, 38528), (518, 35776), (559, 33152), (592, 31304), (602, 30784), (688, 26936), (728, 25456), (832, 22274), (896, 20683), (962, 19264), (1036, 17888), (1118, 16576), (1184, 15652), (1204, 15392), (1376, 13468), (1456, 12728), (1591, 11648), (1664, 11137), (1924, 9632), (2072, 8944), (2236, 8288), (2368, 7826), (2408, 7696), (2752, 6734), (2912, 6364), (3182, 5824), (3367, 5504), (3848, 4816), (3913, 4736), (4144, 4472)]