19419488

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1283}}^1$

素因数の和:1347

約数の個数: 48

約数和(自身を含む): 42710976

約数和(自身を除く): 23291488

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 43, 44, 86, 88, 172, 176, 344, 352, 473, 688, 946, 1283, 1376, 1892, 2566, 3784, 5132, 7568, 10264, 14113, 15136, 20528, 28226, 41056, 55169, 56452, 110338, 112904, 220676, 225808, 441352, 451616, 606859, 882704, 1213718, 1765408, 2427436, 4854872, 9709744, 19419488]

約数ペア:

[(1, 19419488), (2, 9709744), (4, 4854872), (8, 2427436), (11, 1765408), (16, 1213718), (22, 882704), (32, 606859), (43, 451616), (44, 441352), (86, 225808), (88, 220676), (172, 112904), (176, 110338), (344, 56452), (352, 55169), (473, 41056), (688, 28226), (946, 20528), (1283, 15136), (1376, 14113), (1892, 10264), (2566, 7568), (3784, 5132)]