20285916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 56996352

約数和(自身を除く): 36710436

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 61, 74, 84, 107, 111, 122, 148, 183, 214, 222, 244, 259, 321, 366, 427, 428, 444, 518, 642, 732, 749, 777, 854, 1036, 1281, 1284, 1498, 1554, 1708, 2247, 2257, 2562, 2996, 3108, 3959, 4494, 4514, 5124, 6527, 6771, 7918, 8988, 9028, 11877, 13054, 13542, 15799, 15836, 19581, 23754, 26108, 27084, 27713, 31598, 39162, 45689, 47397, 47508, 55426, 63196, 78324, 83139, 91378, 94794, 110852, 137067, 166278, 182756, 189588, 241499, 274134, 332556, 482998, 548268, 724497, 965996, 1448994, 1690493, 2897988, 3380986, 5071479, 6761972, 10142958, 20285916]

約数ペア:

[(1, 20285916), (2, 10142958), (3, 6761972), (4, 5071479), (6, 3380986), (7, 2897988), (12, 1690493), (14, 1448994), (21, 965996), (28, 724497), (37, 548268), (42, 482998), (61, 332556), (74, 274134), (84, 241499), (107, 189588), (111, 182756), (122, 166278), (148, 137067), (183, 110852), (214, 94794), (222, 91378), (244, 83139), (259, 78324), (321, 63196), (366, 55426), (427, 47508), (428, 47397), (444, 45689), (518, 39162), (642, 31598), (732, 27713), (749, 27084), (777, 26108), (854, 23754), (1036, 19581), (1281, 15836), (1284, 15799), (1498, 13542), (1554, 13054), (1708, 11877), (2247, 9028), (2257, 8988), (2562, 7918), (2996, 6771), (3108, 6527), (3959, 5124), (4494, 4514)]