649298

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:158

約数の個数: 24

約数和(自身を含む): 1126548

約数和(自身を除く): 477250

約数列:

[1, 2, 13, 17, 26, 34, 113, 169, 221, 226, 338, 442, 1469, 1921, 2873, 2938, 3842, 5746, 19097, 24973, 38194, 49946, 324649, 649298]

約数ペア:

[(1, 649298), (2, 324649), (13, 49946), (17, 38194), (26, 24973), (34, 19097), (113, 5746), (169, 3842), (221, 2938), (226, 2873), (338, 1921), (442, 1469)]