19540576

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1291}}^1$

素因数の和:1355

約数の個数: 48

約数和(自身を含む): 42977088

約数和(自身を除く): 23436512

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 172, 176, 344, 352, 473, 688, 946, 1291, 1376, 1892, 2582, 3784, 5164, 7568, 10328, 14201, 15136, 20656, 28402, 41312, 55513, 56804, 111026, 113608, 222052, 227216, 444104, 454432, 610643, 888208, 1221286, 1776416, 2442572, 4885144, 9770288, 19540576]

約数ペア:

[(1, 19540576), (2, 9770288), (4, 4885144), (8, 2442572), (11, 1776416), (16, 1221286), (22, 888208), (32, 610643), (43, 454432), (44, 444104), (86, 227216), (88, 222052), (172, 113608), (176, 111026), (344, 56804), (352, 55513), (473, 41312), (688, 28402), (946, 20656), (1291, 15136), (1376, 14201), (1892, 10328), (2582, 7568), (3784, 5164)]