21507192

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{307}}^1$

素因数の和:465

約数の個数: 96

約数和(自身を含む): 67267200

約数和(自身を除く): 45760008

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 139, 168, 252, 278, 307, 417, 504, 556, 614, 834, 921, 973, 1112, 1228, 1251, 1668, 1842, 1946, 2149, 2456, 2502, 2763, 2919, 3336, 3684, 3892, 4298, 5004, 5526, 5838, 6447, 7368, 7784, 8596, 8757, 10008, 11052, 11676, 12894, 17192, 17514, 19341, 22104, 23352, 25788, 35028, 38682, 42673, 51576, 70056, 77364, 85346, 128019, 154728, 170692, 256038, 298711, 341384, 384057, 512076, 597422, 768114, 896133, 1024152, 1194844, 1536228, 1792266, 2389688, 2688399, 3072456, 3584532, 5376798, 7169064, 10753596, 21507192]

約数ペア:

[(1, 21507192), (2, 10753596), (3, 7169064), (4, 5376798), (6, 3584532), (7, 3072456), (8, 2688399), (9, 2389688), (12, 1792266), (14, 1536228), (18, 1194844), (21, 1024152), (24, 896133), (28, 768114), (36, 597422), (42, 512076), (56, 384057), (63, 341384), (72, 298711), (84, 256038), (126, 170692), (139, 154728), (168, 128019), (252, 85346), (278, 77364), (307, 70056), (417, 51576), (504, 42673), (556, 38682), (614, 35028), (834, 25788), (921, 23352), (973, 22104), (1112, 19341), (1228, 17514), (1251, 17192), (1668, 12894), (1842, 11676), (1946, 11052), (2149, 10008), (2456, 8757), (2502, 8596), (2763, 7784), (2919, 7368), (3336, 6447), (3684, 5838), (3892, 5526), (4298, 5004)]