21771232

素因数分解:

$2^5\times 7^1\times {\mathrm{83}}^1\times {\mathrm{1171}}^1$

素因数の和:1271

約数の個数: 48

約数和(自身を含む): 49617792

約数和(自身を除く): 27846560

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 83, 112, 166, 224, 332, 581, 664, 1162, 1171, 1328, 2324, 2342, 2656, 4648, 4684, 8197, 9296, 9368, 16394, 18592, 18736, 32788, 37472, 65576, 97193, 131152, 194386, 262304, 388772, 680351, 777544, 1360702, 1555088, 2721404, 3110176, 5442808, 10885616, 21771232]

約数ペア:

[(1, 21771232), (2, 10885616), (4, 5442808), (7, 3110176), (8, 2721404), (14, 1555088), (16, 1360702), (28, 777544), (32, 680351), (56, 388772), (83, 262304), (112, 194386), (166, 131152), (224, 97193), (332, 65576), (581, 37472), (664, 32788), (1162, 18736), (1171, 18592), (1328, 16394), (2324, 9368), (2342, 9296), (2656, 8197), (4648, 4684)]