20957496

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:345

約数の個数: 96

約数和(自身を含む): 62052480

約数和(自身を除く): 41094984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 71, 84, 98, 142, 147, 168, 196, 213, 251, 284, 294, 392, 426, 497, 502, 568, 588, 753, 852, 994, 1004, 1176, 1491, 1506, 1704, 1757, 1988, 2008, 2982, 3012, 3479, 3514, 3976, 5271, 5964, 6024, 6958, 7028, 10437, 10542, 11928, 12299, 13916, 14056, 17821, 20874, 21084, 24598, 27832, 35642, 36897, 41748, 42168, 49196, 53463, 71284, 73794, 83496, 98392, 106926, 124747, 142568, 147588, 213852, 249494, 295176, 374241, 427704, 498988, 748482, 873229, 997976, 1496964, 1746458, 2619687, 2993928, 3492916, 5239374, 6985832, 10478748, 20957496]

約数ペア:

[(1, 20957496), (2, 10478748), (3, 6985832), (4, 5239374), (6, 3492916), (7, 2993928), (8, 2619687), (12, 1746458), (14, 1496964), (21, 997976), (24, 873229), (28, 748482), (42, 498988), (49, 427704), (56, 374241), (71, 295176), (84, 249494), (98, 213852), (142, 147588), (147, 142568), (168, 124747), (196, 106926), (213, 98392), (251, 83496), (284, 73794), (294, 71284), (392, 53463), (426, 49196), (497, 42168), (502, 41748), (568, 36897), (588, 35642), (753, 27832), (852, 24598), (994, 21084), (1004, 20874), (1176, 17821), (1491, 14056), (1506, 13916), (1704, 12299), (1757, 11928), (1988, 10542), (2008, 10437), (2982, 7028), (3012, 6958), (3479, 6024), (3514, 5964), (3976, 5271)]