21574784

素因数分解:

$2^7\times 7^1\times {\mathrm{11}}^2\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 96

約数和(自身を含む): 54264000

約数和(自身を除く): 32689216

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 121, 128, 154, 176, 199, 224, 242, 308, 352, 398, 448, 484, 616, 704, 796, 847, 896, 968, 1232, 1393, 1408, 1592, 1694, 1936, 2189, 2464, 2786, 3184, 3388, 3872, 4378, 4928, 5572, 6368, 6776, 7744, 8756, 9856, 11144, 12736, 13552, 15323, 15488, 17512, 22288, 24079, 25472, 27104, 30646, 35024, 44576, 48158, 54208, 61292, 70048, 89152, 96316, 108416, 122584, 140096, 168553, 178304, 192632, 245168, 280192, 337106, 385264, 490336, 674212, 770528, 980672, 1348424, 1541056, 1961344, 2696848, 3082112, 5393696, 10787392, 21574784]

約数ペア:

[(1, 21574784), (2, 10787392), (4, 5393696), (7, 3082112), (8, 2696848), (11, 1961344), (14, 1541056), (16, 1348424), (22, 980672), (28, 770528), (32, 674212), (44, 490336), (56, 385264), (64, 337106), (77, 280192), (88, 245168), (112, 192632), (121, 178304), (128, 168553), (154, 140096), (176, 122584), (199, 108416), (224, 96316), (242, 89152), (308, 70048), (352, 61292), (398, 54208), (448, 48158), (484, 44576), (616, 35024), (704, 30646), (796, 27104), (847, 25472), (896, 24079), (968, 22288), (1232, 17512), (1393, 15488), (1408, 15323), (1592, 13552), (1694, 12736), (1936, 11144), (2189, 9856), (2464, 8756), (2786, 7744), (3184, 6776), (3388, 6368), (3872, 5572), (4378, 4928)]