21081432

素因数分解:

$2^3\times 3^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{211}}^1$

素因数の和:424

約数の個数: 64

約数和(自身を含む): 55560960

約数和(自身を除く): 34479528

約数列:

[1, 2, 3, 4, 6, 8, 12, 23, 24, 46, 69, 92, 138, 181, 184, 211, 276, 362, 422, 543, 552, 633, 724, 844, 1086, 1266, 1448, 1688, 2172, 2532, 4163, 4344, 4853, 5064, 8326, 9706, 12489, 14559, 16652, 19412, 24978, 29118, 33304, 38191, 38824, 49956, 58236, 76382, 99912, 114573, 116472, 152764, 229146, 305528, 458292, 878393, 916584, 1756786, 2635179, 3513572, 5270358, 7027144, 10540716, 21081432]

約数ペア:

[(1, 21081432), (2, 10540716), (3, 7027144), (4, 5270358), (6, 3513572), (8, 2635179), (12, 1756786), (23, 916584), (24, 878393), (46, 458292), (69, 305528), (92, 229146), (138, 152764), (181, 116472), (184, 114573), (211, 99912), (276, 76382), (362, 58236), (422, 49956), (543, 38824), (552, 38191), (633, 33304), (724, 29118), (844, 24978), (1086, 19412), (1266, 16652), (1448, 14559), (1688, 12489), (2172, 9706), (2532, 8326), (4163, 5064), (4344, 4853)]