20641236

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40322604

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 89, 132, 154, 178, 231, 251, 267, 308, 356, 462, 502, 534, 623, 753, 924, 979, 1004, 1068, 1246, 1506, 1757, 1869, 1958, 2492, 2761, 2937, 3012, 3514, 3738, 3916, 5271, 5522, 5874, 6853, 7028, 7476, 8283, 10542, 11044, 11748, 13706, 16566, 19327, 20559, 21084, 22339, 27412, 33132, 38654, 41118, 44678, 57981, 67017, 77308, 82236, 89356, 115962, 134034, 156373, 231924, 245729, 268068, 312746, 469119, 491458, 625492, 737187, 938238, 982916, 1474374, 1720103, 1876476, 2948748, 3440206, 5160309, 6880412, 10320618, 20641236]

約数ペア:

[(1, 20641236), (2, 10320618), (3, 6880412), (4, 5160309), (6, 3440206), (7, 2948748), (11, 1876476), (12, 1720103), (14, 1474374), (21, 982916), (22, 938238), (28, 737187), (33, 625492), (42, 491458), (44, 469119), (66, 312746), (77, 268068), (84, 245729), (89, 231924), (132, 156373), (154, 134034), (178, 115962), (231, 89356), (251, 82236), (267, 77308), (308, 67017), (356, 57981), (462, 44678), (502, 41118), (534, 38654), (623, 33132), (753, 27412), (924, 22339), (979, 21084), (1004, 20559), (1068, 19327), (1246, 16566), (1506, 13706), (1757, 11748), (1869, 11044), (1958, 10542), (2492, 8283), (2761, 7476), (2937, 7028), (3012, 6853), (3514, 5874), (3738, 5522), (3916, 5271)]