19882816

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:311

約数の個数: 56

約数和(自身を含む): 42245280

約数和(自身を除く): 22362464

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 83, 152, 166, 197, 304, 332, 394, 608, 664, 788, 1216, 1328, 1576, 1577, 2656, 3152, 3154, 3743, 5312, 6304, 6308, 7486, 12608, 12616, 14972, 16351, 25232, 29944, 32702, 50464, 59888, 65404, 100928, 119776, 130808, 239552, 261616, 310669, 523232, 621338, 1046464, 1242676, 2485352, 4970704, 9941408, 19882816]

約数ペア:

[(1, 19882816), (2, 9941408), (4, 4970704), (8, 2485352), (16, 1242676), (19, 1046464), (32, 621338), (38, 523232), (64, 310669), (76, 261616), (83, 239552), (152, 130808), (166, 119776), (197, 100928), (304, 65404), (332, 59888), (394, 50464), (608, 32702), (664, 29944), (788, 25232), (1216, 16351), (1328, 14972), (1576, 12616), (1577, 12608), (2656, 7486), (3152, 6308), (3154, 6304), (3743, 5312)]