20148189

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2543}}^1$

素因数の和:2704

約数の個数: 16

約数和(自身を含む): 28492800

約数和(自身を除く): 8344611

約数列:

[1, 3, 19, 57, 139, 417, 2543, 2641, 7629, 7923, 48317, 144951, 353477, 1060431, 6716063, 20148189]

約数ペア:

[(1, 20148189), (3, 6716063), (19, 1060431), (57, 353477), (139, 144951), (417, 48317), (2543, 7923), (2641, 7629)]