20854008

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{257}}^1$

素因数の和:306

約数の個数: 144

約数和(自身を含む): 68824080

約数和(自身を除く): 47970072

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 23, 24, 28, 36, 42, 46, 49, 56, 63, 69, 72, 84, 92, 98, 126, 138, 147, 161, 168, 184, 196, 207, 252, 257, 276, 294, 322, 392, 414, 441, 483, 504, 514, 552, 588, 644, 771, 828, 882, 966, 1028, 1127, 1176, 1288, 1449, 1542, 1656, 1764, 1799, 1932, 2056, 2254, 2313, 2898, 3084, 3381, 3528, 3598, 3864, 4508, 4626, 5397, 5796, 5911, 6168, 6762, 7196, 9016, 9252, 10143, 10794, 11592, 11822, 12593, 13524, 14392, 16191, 17733, 18504, 20286, 21588, 23644, 25186, 27048, 32382, 35466, 37779, 40572, 41377, 43176, 47288, 50372, 53199, 64764, 70932, 75558, 81144, 82754, 100744, 106398, 113337, 124131, 129528, 141864, 151116, 165508, 212796, 226674, 248262, 289639, 302232, 331016, 372393, 425592, 453348, 496524, 579278, 744786, 868917, 906696, 993048, 1158556, 1489572, 1737834, 2317112, 2606751, 2979144, 3475668, 5213502, 6951336, 10427004, 20854008]

約数ペア:

[(1, 20854008), (2, 10427004), (3, 6951336), (4, 5213502), (6, 3475668), (7, 2979144), (8, 2606751), (9, 2317112), (12, 1737834), (14, 1489572), (18, 1158556), (21, 993048), (23, 906696), (24, 868917), (28, 744786), (36, 579278), (42, 496524), (46, 453348), (49, 425592), (56, 372393), (63, 331016), (69, 302232), (72, 289639), (84, 248262), (92, 226674), (98, 212796), (126, 165508), (138, 151116), (147, 141864), (161, 129528), (168, 124131), (184, 113337), (196, 106398), (207, 100744), (252, 82754), (257, 81144), (276, 75558), (294, 70932), (322, 64764), (392, 53199), (414, 50372), (441, 47288), (483, 43176), (504, 41377), (514, 40572), (552, 37779), (588, 35466), (644, 32382), (771, 27048), (828, 25186), (882, 23644), (966, 21588), (1028, 20286), (1127, 18504), (1176, 17733), (1288, 16191), (1449, 14392), (1542, 13524), (1656, 12593), (1764, 11822), (1799, 11592), (1932, 10794), (2056, 10143), (2254, 9252), (2313, 9016), (2898, 7196), (3084, 6762), (3381, 6168), (3528, 5911), (3598, 5796), (3864, 5397), (4508, 4626)]