19664144

素因数分解:

$2^4\times {\mathrm{317}}^1\times {\mathrm{3877}}^1$

素因数の和:4202

約数の個数: 20

約数和(自身を含む): 38229324

約数和(自身を除く): 18565180

約数列:

[1, 2, 4, 8, 16, 317, 634, 1268, 2536, 3877, 5072, 7754, 15508, 31016, 62032, 1229009, 2458018, 4916036, 9832072, 19664144]

約数ペア:

[(1, 19664144), (2, 9832072), (4, 4916036), (8, 2458018), (16, 1229009), (317, 62032), (634, 31016), (1268, 15508), (2536, 7754), (3877, 5072)]