20597392

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{317}}^1$

素因数の和:487

約数の個数: 40

約数和(自身を含む): 41640192

約数和(自身を除く): 21042800

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 131, 248, 262, 317, 496, 524, 634, 1048, 1268, 2096, 2536, 4061, 5072, 8122, 9827, 16244, 19654, 32488, 39308, 41527, 64976, 78616, 83054, 157232, 166108, 332216, 664432, 1287337, 2574674, 5149348, 10298696, 20597392]

約数ペア:

[(1, 20597392), (2, 10298696), (4, 5149348), (8, 2574674), (16, 1287337), (31, 664432), (62, 332216), (124, 166108), (131, 157232), (248, 83054), (262, 78616), (317, 64976), (496, 41527), (524, 39308), (634, 32488), (1048, 19654), (1268, 16244), (2096, 9827), (2536, 8122), (4061, 5072)]