21703040

素因数分解:

$2^7\times 5^1\times {\mathrm{33911}}^1$

素因数の和:33930

約数の個数: 32

約数和(自身を含む): 51885360

約数和(自身を除く): 30182320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33911, 67822, 135644, 169555, 271288, 339110, 542576, 678220, 1085152, 1356440, 2170304, 2712880, 4340608, 5425760, 10851520, 21703040]

約数ペア:

[(1, 21703040), (2, 10851520), (4, 5425760), (5, 4340608), (8, 2712880), (10, 2170304), (16, 1356440), (20, 1085152), (32, 678220), (40, 542576), (64, 339110), (80, 271288), (128, 169555), (160, 135644), (320, 67822), (640, 33911)]