21105392

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:526

約数の個数: 80

約数和(自身を含む): 52472832

約数和(自身を除く): 31367440

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 37, 44, 56, 74, 77, 88, 112, 148, 154, 176, 259, 296, 308, 407, 463, 518, 592, 616, 814, 926, 1036, 1232, 1628, 1852, 2072, 2849, 3241, 3256, 3704, 4144, 5093, 5698, 6482, 6512, 7408, 10186, 11396, 12964, 17131, 20372, 22792, 25928, 34262, 35651, 40744, 45584, 51856, 68524, 71302, 81488, 119917, 137048, 142604, 188441, 239834, 274096, 285208, 376882, 479668, 570416, 753764, 959336, 1319087, 1507528, 1918672, 2638174, 3015056, 5276348, 10552696, 21105392]

約数ペア:

[(1, 21105392), (2, 10552696), (4, 5276348), (7, 3015056), (8, 2638174), (11, 1918672), (14, 1507528), (16, 1319087), (22, 959336), (28, 753764), (37, 570416), (44, 479668), (56, 376882), (74, 285208), (77, 274096), (88, 239834), (112, 188441), (148, 142604), (154, 137048), (176, 119917), (259, 81488), (296, 71302), (308, 68524), (407, 51856), (463, 45584), (518, 40744), (592, 35651), (616, 34262), (814, 25928), (926, 22792), (1036, 20372), (1232, 17131), (1628, 12964), (1852, 11396), (2072, 10186), (2849, 7408), (3241, 6512), (3256, 6482), (3704, 5698), (4144, 5093)]