31420906

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{7177}}^1$

素因数の和:7389

約数の個数: 16

約数和(自身を含む): 51681600

約数和(自身を除く): 20260694

約数列:

[1, 2, 11, 22, 199, 398, 2189, 4378, 7177, 14354, 78947, 157894, 1428223, 2856446, 15710453, 31420906]

約数ペア:

[(1, 31420906), (2, 15710453), (11, 2856446), (22, 1428223), (199, 157894), (398, 78947), (2189, 14354), (4378, 7177)]