19691936

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1301}}^1$

素因数の和:1365

約数の個数: 48

約数和(自身を含む): 43309728

約数和(自身を除く): 23617792

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 172, 176, 344, 352, 473, 688, 946, 1301, 1376, 1892, 2602, 3784, 5204, 7568, 10408, 14311, 15136, 20816, 28622, 41632, 55943, 57244, 111886, 114488, 223772, 228976, 447544, 457952, 615373, 895088, 1230746, 1790176, 2461492, 4922984, 9845968, 19691936]

約数ペア:

[(1, 19691936), (2, 9845968), (4, 4922984), (8, 2461492), (11, 1790176), (16, 1230746), (22, 895088), (32, 615373), (43, 457952), (44, 447544), (86, 228976), (88, 223772), (172, 114488), (176, 111886), (344, 57244), (352, 55943), (473, 41632), (688, 28622), (946, 20816), (1301, 15136), (1376, 14311), (1892, 10408), (2602, 7568), (3784, 5204)]