21624320

素因数分解:

$2^9\times 5^1\times {\mathrm{8447}}^1$

素因数の和:8470

約数の個数: 40

約数和(自身を含む): 51853824

約数和(自身を除く): 30229504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8447, 16894, 33788, 42235, 67576, 84470, 135152, 168940, 270304, 337880, 540608, 675760, 1081216, 1351520, 2162432, 2703040, 4324864, 5406080, 10812160, 21624320]

約数ペア:

[(1, 21624320), (2, 10812160), (4, 5406080), (5, 4324864), (8, 2703040), (10, 2162432), (16, 1351520), (20, 1081216), (32, 675760), (40, 540608), (64, 337880), (80, 270304), (128, 168940), (160, 135152), (256, 84470), (320, 67576), (512, 42235), (640, 33788), (1280, 16894), (2560, 8447)]