20857872

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2699}}^1$

素因数の和:2740

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 43423728

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 42, 46, 48, 56, 69, 84, 92, 112, 138, 161, 168, 184, 276, 322, 336, 368, 483, 552, 644, 966, 1104, 1288, 1932, 2576, 2699, 3864, 5398, 7728, 8097, 10796, 16194, 18893, 21592, 32388, 37786, 43184, 56679, 62077, 64776, 75572, 113358, 124154, 129552, 151144, 186231, 226716, 248308, 302288, 372462, 434539, 453432, 496616, 744924, 869078, 906864, 993232, 1303617, 1489848, 1738156, 2607234, 2979696, 3476312, 5214468, 6952624, 10428936, 20857872]

約数ペア:

[(1, 20857872), (2, 10428936), (3, 6952624), (4, 5214468), (6, 3476312), (7, 2979696), (8, 2607234), (12, 1738156), (14, 1489848), (16, 1303617), (21, 993232), (23, 906864), (24, 869078), (28, 744924), (42, 496616), (46, 453432), (48, 434539), (56, 372462), (69, 302288), (84, 248308), (92, 226716), (112, 186231), (138, 151144), (161, 129552), (168, 124154), (184, 113358), (276, 75572), (322, 64776), (336, 62077), (368, 56679), (483, 43184), (552, 37786), (644, 32388), (966, 21592), (1104, 18893), (1288, 16194), (1932, 10796), (2576, 8097), (2699, 7728), (3864, 5398)]