21610880

素因数分解:

$2^7\times 5^1\times {\mathrm{33767}}^1$

素因数の和:33786

約数の個数: 32

約数和(自身を含む): 51665040

約数和(自身を除く): 30054160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33767, 67534, 135068, 168835, 270136, 337670, 540272, 675340, 1080544, 1350680, 2161088, 2701360, 4322176, 5402720, 10805440, 21610880]

約数ペア:

[(1, 21610880), (2, 10805440), (4, 5402720), (5, 4322176), (8, 2701360), (10, 2161088), (16, 1350680), (20, 1080544), (32, 675340), (40, 540272), (64, 337670), (80, 270136), (128, 168835), (160, 135068), (320, 67534), (640, 33767)]