21484953

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 39731200

約数和(自身を除く): 18246247

約数列:

[1, 3, 7, 9, 19, 21, 27, 31, 57, 63, 93, 133, 171, 189, 193, 217, 279, 399, 513, 579, 589, 651, 837, 1197, 1351, 1737, 1767, 1953, 3591, 3667, 4053, 4123, 5211, 5301, 5859, 5983, 11001, 12159, 12369, 15903, 17949, 25669, 33003, 36477, 37107, 41881, 53847, 77007, 99009, 111321, 113677, 125643, 161541, 231021, 341031, 376929, 693063, 795739, 1023093, 1130787, 2387217, 3069279, 7161651, 21484953]

約数ペア:

[(1, 21484953), (3, 7161651), (7, 3069279), (9, 2387217), (19, 1130787), (21, 1023093), (27, 795739), (31, 693063), (57, 376929), (63, 341031), (93, 231021), (133, 161541), (171, 125643), (189, 113677), (193, 111321), (217, 99009), (279, 77007), (399, 53847), (513, 41881), (579, 37107), (589, 36477), (651, 33003), (837, 25669), (1197, 17949), (1351, 15903), (1737, 12369), (1767, 12159), (1953, 11001), (3591, 5983), (3667, 5859), (4053, 5301), (4123, 5211)]