19875076

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29401}}^1$

素因数の和:29431

約数の個数: 18

約数和(自身を含む): 37663962

約数和(自身を除く): 17788886

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29401, 58802, 117604, 382213, 764426, 1528852, 4968769, 9937538, 19875076]

約数ペア:

[(1, 19875076), (2, 9937538), (4, 4968769), (13, 1528852), (26, 764426), (52, 382213), (169, 117604), (338, 58802), (676, 29401)]