19749158

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{347}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 35078400

約数和(自身を除く): 15329242

約数列:

[1, 2, 11, 13, 22, 26, 143, 199, 286, 347, 398, 694, 2189, 2587, 3817, 4378, 4511, 5174, 7634, 9022, 28457, 49621, 56914, 69053, 99242, 138106, 759583, 897689, 1519166, 1795378, 9874579, 19749158]

約数ペア:

[(1, 19749158), (2, 9874579), (11, 1795378), (13, 1519166), (22, 897689), (26, 759583), (143, 138106), (199, 99242), (286, 69053), (347, 56914), (398, 49621), (694, 28457), (2189, 9022), (2587, 7634), (3817, 5174), (4378, 4511)]