20530566

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1283}}^1$

素因数の和:1425

約数の個数: 48

約数和(自身を含む): 51277824

約数和(自身を除く): 30747258

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 127, 254, 381, 762, 889, 1143, 1283, 1778, 2286, 2566, 2667, 3849, 5334, 7698, 8001, 8981, 11547, 16002, 17962, 23094, 26943, 53886, 80829, 161658, 162941, 325882, 488823, 977646, 1140587, 1466469, 2281174, 2932938, 3421761, 6843522, 10265283, 20530566]

約数ペア:

[(1, 20530566), (2, 10265283), (3, 6843522), (6, 3421761), (7, 2932938), (9, 2281174), (14, 1466469), (18, 1140587), (21, 977646), (42, 488823), (63, 325882), (126, 162941), (127, 161658), (254, 80829), (381, 53886), (762, 26943), (889, 23094), (1143, 17962), (1283, 16002), (1778, 11547), (2286, 8981), (2566, 8001), (2667, 7698), (3849, 5334)]