19804772

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{29297}}^1$

素因数の和:29327

約数の個数: 18

約数和(自身を含む): 37530738

約数和(自身を除く): 17725966

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 29297, 58594, 117188, 380861, 761722, 1523444, 4951193, 9902386, 19804772]

約数ペア:

[(1, 19804772), (2, 9902386), (4, 4951193), (13, 1523444), (26, 761722), (52, 380861), (169, 117188), (338, 58594), (676, 29297)]