19916288

素因数分解:

$2^9\times 7^1\times {\mathrm{5557}}^1$

素因数の和:5582

約数の個数: 40

約数和(自身を含む): 45486672

約数和(自身を除く): 25570384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5557, 11114, 22228, 38899, 44456, 77798, 88912, 155596, 177824, 311192, 355648, 622384, 711296, 1244768, 1422592, 2489536, 2845184, 4979072, 9958144, 19916288]

約数ペア:

[(1, 19916288), (2, 9958144), (4, 4979072), (7, 2845184), (8, 2489536), (14, 1422592), (16, 1244768), (28, 711296), (32, 622384), (56, 355648), (64, 311192), (112, 177824), (128, 155596), (224, 88912), (256, 77798), (448, 44456), (512, 38899), (896, 22228), (1792, 11114), (3584, 5557)]