18161824

素因数分解:

$2^5\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{197}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 37322208

約数和(自身を除く): 19160384

約数列:

[1, 2, 4, 8, 16, 32, 43, 67, 86, 134, 172, 197, 268, 344, 394, 536, 688, 788, 1072, 1376, 1576, 2144, 2881, 3152, 5762, 6304, 8471, 11524, 13199, 16942, 23048, 26398, 33884, 46096, 52796, 67768, 92192, 105592, 135536, 211184, 271072, 422368, 567557, 1135114, 2270228, 4540456, 9080912, 18161824]

約数ペア:

[(1, 18161824), (2, 9080912), (4, 4540456), (8, 2270228), (16, 1135114), (32, 567557), (43, 422368), (67, 271072), (86, 211184), (134, 135536), (172, 105592), (197, 92192), (268, 67768), (344, 52796), (394, 46096), (536, 33884), (688, 26398), (788, 23048), (1072, 16942), (1376, 13199), (1576, 11524), (2144, 8471), (2881, 6304), (3152, 5762)]