18685304

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 39102000

約数和(自身を除く): 20416696

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 121, 194, 199, 242, 388, 398, 484, 776, 796, 968, 1067, 1592, 2134, 2189, 4268, 4378, 8536, 8756, 11737, 17512, 19303, 23474, 24079, 38606, 46948, 48158, 77212, 93896, 96316, 154424, 192632, 212333, 424666, 849332, 1698664, 2335663, 4671326, 9342652, 18685304]

約数ペア:

[(1, 18685304), (2, 9342652), (4, 4671326), (8, 2335663), (11, 1698664), (22, 849332), (44, 424666), (88, 212333), (97, 192632), (121, 154424), (194, 96316), (199, 93896), (242, 77212), (388, 48158), (398, 46948), (484, 38606), (776, 24079), (796, 23474), (968, 19303), (1067, 17512), (1592, 11737), (2134, 8756), (2189, 8536), (4268, 4378)]