21708288

素因数分解:

$2^9\times 3^2\times 7^1\times {\mathrm{673}}^1$

素因数の和:704

約数の個数: 120

約数和(自身を含む): 71708208

約数和(自身を除く): 49999920

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 84, 96, 112, 126, 128, 144, 168, 192, 224, 252, 256, 288, 336, 384, 448, 504, 512, 576, 672, 673, 768, 896, 1008, 1152, 1344, 1346, 1536, 1792, 2016, 2019, 2304, 2688, 2692, 3584, 4032, 4038, 4608, 4711, 5376, 5384, 6057, 8064, 8076, 9422, 10752, 10768, 12114, 14133, 16128, 16152, 18844, 21536, 24228, 28266, 32256, 32304, 37688, 42399, 43072, 48456, 56532, 64608, 75376, 84798, 86144, 96912, 113064, 129216, 150752, 169596, 172288, 193824, 226128, 258432, 301504, 339192, 344576, 387648, 452256, 516864, 603008, 678384, 775296, 904512, 1033728, 1206016, 1356768, 1550592, 1809024, 2412032, 2713536, 3101184, 3618048, 5427072, 7236096, 10854144, 21708288]

約数ペア:

[(1, 21708288), (2, 10854144), (3, 7236096), (4, 5427072), (6, 3618048), (7, 3101184), (8, 2713536), (9, 2412032), (12, 1809024), (14, 1550592), (16, 1356768), (18, 1206016), (21, 1033728), (24, 904512), (28, 775296), (32, 678384), (36, 603008), (42, 516864), (48, 452256), (56, 387648), (63, 344576), (64, 339192), (72, 301504), (84, 258432), (96, 226128), (112, 193824), (126, 172288), (128, 169596), (144, 150752), (168, 129216), (192, 113064), (224, 96912), (252, 86144), (256, 84798), (288, 75376), (336, 64608), (384, 56532), (448, 48456), (504, 43072), (512, 42399), (576, 37688), (672, 32304), (673, 32256), (768, 28266), (896, 24228), (1008, 21536), (1152, 18844), (1344, 16152), (1346, 16128), (1536, 14133), (1792, 12114), (2016, 10768), (2019, 10752), (2304, 9422), (2688, 8076), (2692, 8064), (3584, 6057), (4032, 5384), (4038, 5376), (4608, 4711)]