18829712

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1289}}^1$

素因数の和:1391

約数の個数: 40

約数和(自身を含む): 40309920

約数和(自身を除く): 21480208

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 83, 88, 166, 176, 332, 664, 913, 1289, 1328, 1826, 2578, 3652, 5156, 7304, 10312, 14179, 14608, 20624, 28358, 56716, 106987, 113432, 213974, 226864, 427948, 855896, 1176857, 1711792, 2353714, 4707428, 9414856, 18829712]

約数ペア:

[(1, 18829712), (2, 9414856), (4, 4707428), (8, 2353714), (11, 1711792), (16, 1176857), (22, 855896), (44, 427948), (83, 226864), (88, 213974), (166, 113432), (176, 106987), (332, 56716), (664, 28358), (913, 20624), (1289, 14608), (1328, 14179), (1826, 10312), (2578, 7304), (3652, 5156)]