21789184

素因数分解:

$2^9\times {\mathrm{42557}}^1$

素因数の和:42575

約数の個数: 20

約数和(自身を含む): 43536834

約数和(自身を除く): 21747650

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 42557, 85114, 170228, 340456, 680912, 1361824, 2723648, 5447296, 10894592, 21789184]

約数ペア:

[(1, 21789184), (2, 10894592), (4, 5447296), (8, 2723648), (16, 1361824), (32, 680912), (64, 340456), (128, 170228), (256, 85114), (512, 42557)]