20857408

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:132

約数の個数: 112

約数和(自身を含む): 50694336

約数和(自身を除く): 29836928

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 43, 44, 52, 53, 64, 86, 88, 104, 106, 143, 172, 176, 208, 212, 286, 344, 352, 416, 424, 473, 559, 572, 583, 688, 689, 704, 832, 848, 946, 1118, 1144, 1166, 1376, 1378, 1696, 1892, 2236, 2279, 2288, 2332, 2752, 2756, 3392, 3784, 4472, 4558, 4576, 4664, 5512, 6149, 7568, 7579, 8944, 9116, 9152, 9328, 11024, 12298, 15136, 15158, 17888, 18232, 18656, 22048, 24596, 25069, 29627, 30272, 30316, 35776, 36464, 37312, 44096, 49192, 50138, 59254, 60632, 72928, 98384, 100276, 118508, 121264, 145856, 196768, 200552, 237016, 242528, 325897, 393536, 401104, 474032, 485056, 651794, 802208, 948064, 1303588, 1604416, 1896128, 2607176, 5214352, 10428704, 20857408]

約数ペア:

[(1, 20857408), (2, 10428704), (4, 5214352), (8, 2607176), (11, 1896128), (13, 1604416), (16, 1303588), (22, 948064), (26, 802208), (32, 651794), (43, 485056), (44, 474032), (52, 401104), (53, 393536), (64, 325897), (86, 242528), (88, 237016), (104, 200552), (106, 196768), (143, 145856), (172, 121264), (176, 118508), (208, 100276), (212, 98384), (286, 72928), (344, 60632), (352, 59254), (416, 50138), (424, 49192), (473, 44096), (559, 37312), (572, 36464), (583, 35776), (688, 30316), (689, 30272), (704, 29627), (832, 25069), (848, 24596), (946, 22048), (1118, 18656), (1144, 18232), (1166, 17888), (1376, 15158), (1378, 15136), (1696, 12298), (1892, 11024), (2236, 9328), (2279, 9152), (2288, 9116), (2332, 8944), (2752, 7579), (2756, 7568), (3392, 6149), (3784, 5512), (4472, 4664), (4558, 4576)]