19905248

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{293}}^1$

素因数の和:507

約数の個数: 48

約数和(自身を含む): 43119216

約数和(自身を除く): 23213968

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 176, 193, 293, 352, 386, 586, 772, 1172, 1544, 2123, 2344, 3088, 3223, 4246, 4688, 6176, 6446, 8492, 9376, 12892, 16984, 25784, 33968, 51568, 56549, 67936, 103136, 113098, 226196, 452392, 622039, 904784, 1244078, 1809568, 2488156, 4976312, 9952624, 19905248]

約数ペア:

[(1, 19905248), (2, 9952624), (4, 4976312), (8, 2488156), (11, 1809568), (16, 1244078), (22, 904784), (32, 622039), (44, 452392), (88, 226196), (176, 113098), (193, 103136), (293, 67936), (352, 56549), (386, 51568), (586, 33968), (772, 25784), (1172, 16984), (1544, 12892), (2123, 9376), (2344, 8492), (3088, 6446), (3223, 6176), (4246, 4688)]