991393921

素因数分解:

$7^2\times {\mathrm{199}}^1\times {\mathrm{293}}^1\times {\mathrm{347}}^1$

素因数の和:853

約数の個数: 24

約数和(自身を含む): 1166356800

約数和(自身を除く): 174962879

約数列:

[1, 7, 49, 199, 293, 347, 1393, 2051, 2429, 9751, 14357, 17003, 58307, 69053, 101671, 408149, 483371, 711697, 2857043, 3383597, 4981879, 20232529, 141627703, 991393921]

約数ペア:

[(1, 991393921), (7, 141627703), (49, 20232529), (199, 4981879), (293, 3383597), (347, 2857043), (1393, 711697), (2051, 483371), (2429, 408149), (9751, 101671), (14357, 69053), (17003, 58307)]