18665416

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 44138880

約数和(自身を除く): 25473464

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 154, 157, 193, 308, 314, 386, 616, 628, 772, 1099, 1256, 1351, 1544, 1727, 2123, 2198, 2702, 3454, 4246, 4396, 5404, 6908, 8492, 8792, 10808, 12089, 13816, 14861, 16984, 24178, 29722, 30301, 48356, 59444, 60602, 96712, 118888, 121204, 212107, 242408, 333311, 424214, 666622, 848428, 1333244, 1696856, 2333177, 2666488, 4666354, 9332708, 18665416]

約数ペア:

[(1, 18665416), (2, 9332708), (4, 4666354), (7, 2666488), (8, 2333177), (11, 1696856), (14, 1333244), (22, 848428), (28, 666622), (44, 424214), (56, 333311), (77, 242408), (88, 212107), (154, 121204), (157, 118888), (193, 96712), (308, 60602), (314, 59444), (386, 48356), (616, 30301), (628, 29722), (772, 24178), (1099, 16984), (1256, 14861), (1351, 13816), (1544, 12089), (1727, 10808), (2123, 8792), (2198, 8492), (2702, 6908), (3454, 5404), (4246, 4396)]