18787328

素因数分解:

$2^{10}\times 7^1\times {\mathrm{2621}}^1$

素因数の和:2648

約数の個数: 44

約数和(自身を含む): 42937872

約数和(自身を除く): 24150544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2621, 3584, 5242, 7168, 10484, 18347, 20968, 36694, 41936, 73388, 83872, 146776, 167744, 293552, 335488, 587104, 670976, 1174208, 1341952, 2348416, 2683904, 4696832, 9393664, 18787328]

約数ペア:

[(1, 18787328), (2, 9393664), (4, 4696832), (7, 2683904), (8, 2348416), (14, 1341952), (16, 1174208), (28, 670976), (32, 587104), (56, 335488), (64, 293552), (112, 167744), (128, 146776), (224, 83872), (256, 73388), (448, 41936), (512, 36694), (896, 20968), (1024, 18347), (1792, 10484), (2621, 7168), (3584, 5242)]