18705544

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:310

約数の個数: 64

約数和(自身を含む): 41912640

約数和(自身を除く): 23207096

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 83, 88, 104, 143, 166, 197, 286, 332, 394, 572, 664, 788, 913, 1079, 1144, 1576, 1826, 2158, 2167, 2561, 3652, 4316, 4334, 5122, 7304, 8632, 8668, 10244, 11869, 16351, 17336, 20488, 23738, 28171, 32702, 47476, 56342, 65404, 94952, 112684, 130808, 179861, 212563, 225368, 359722, 425126, 719444, 850252, 1438888, 1700504, 2338193, 4676386, 9352772, 18705544]

約数ペア:

[(1, 18705544), (2, 9352772), (4, 4676386), (8, 2338193), (11, 1700504), (13, 1438888), (22, 850252), (26, 719444), (44, 425126), (52, 359722), (83, 225368), (88, 212563), (104, 179861), (143, 130808), (166, 112684), (197, 94952), (286, 65404), (332, 56342), (394, 47476), (572, 32702), (664, 28171), (788, 23738), (913, 20488), (1079, 17336), (1144, 16351), (1576, 11869), (1826, 10244), (2158, 8668), (2167, 8632), (2561, 7304), (3652, 5122), (4316, 4334)]