18861568

素因数分解:

$2^9\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1$

素因数の和:243

約数の個数: 80

約数和(自身を含む): 43751664

約数和(自身を除く): 24890096

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 128, 136, 176, 187, 197, 256, 272, 352, 374, 394, 512, 544, 704, 748, 788, 1088, 1408, 1496, 1576, 2167, 2176, 2816, 2992, 3152, 3349, 4334, 4352, 5632, 5984, 6304, 6698, 8668, 8704, 11968, 12608, 13396, 17336, 23936, 25216, 26792, 34672, 36839, 47872, 50432, 53584, 69344, 73678, 95744, 100864, 107168, 138688, 147356, 214336, 277376, 294712, 428672, 554752, 589424, 857344, 1109504, 1178848, 1714688, 2357696, 4715392, 9430784, 18861568]

約数ペア:

[(1, 18861568), (2, 9430784), (4, 4715392), (8, 2357696), (11, 1714688), (16, 1178848), (17, 1109504), (22, 857344), (32, 589424), (34, 554752), (44, 428672), (64, 294712), (68, 277376), (88, 214336), (128, 147356), (136, 138688), (176, 107168), (187, 100864), (197, 95744), (256, 73678), (272, 69344), (352, 53584), (374, 50432), (394, 47872), (512, 36839), (544, 34672), (704, 26792), (748, 25216), (788, 23936), (1088, 17336), (1408, 13396), (1496, 12608), (1576, 11968), (2167, 8704), (2176, 8668), (2816, 6698), (2992, 6304), (3152, 5984), (3349, 5632), (4334, 4352)]