21801824

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{257}}^1$

素因数の和:519

約数の個数: 48

約数和(自身を含む): 47201616

約数和(自身を除く): 25399792

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 241, 257, 352, 482, 514, 964, 1028, 1928, 2056, 2651, 2827, 3856, 4112, 5302, 5654, 7712, 8224, 10604, 11308, 21208, 22616, 42416, 45232, 61937, 84832, 90464, 123874, 247748, 495496, 681307, 990992, 1362614, 1981984, 2725228, 5450456, 10900912, 21801824]

約数ペア:

[(1, 21801824), (2, 10900912), (4, 5450456), (8, 2725228), (11, 1981984), (16, 1362614), (22, 990992), (32, 681307), (44, 495496), (88, 247748), (176, 123874), (241, 90464), (257, 84832), (352, 61937), (482, 45232), (514, 42416), (964, 22616), (1028, 21208), (1928, 11308), (2056, 10604), (2651, 8224), (2827, 7712), (3856, 5654), (4112, 5302)]