21337976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{5639}}^1$

素因数の和:5699

約数の個数: 32

約数和(自身を含む): 44668800

約数和(自身を除く): 23330824

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 172, 344, 473, 946, 1892, 3784, 5639, 11278, 22556, 45112, 62029, 124058, 242477, 248116, 484954, 496232, 969908, 1939816, 2667247, 5334494, 10668988, 21337976]

約数ペア:

[(1, 21337976), (2, 10668988), (4, 5334494), (8, 2667247), (11, 1939816), (22, 969908), (43, 496232), (44, 484954), (86, 248116), (88, 242477), (172, 124058), (344, 62029), (473, 45112), (946, 22556), (1892, 11278), (3784, 5639)]