20949899

素因数分解:

${\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1126

約数の個数: 12

約数和(自身を含む): 22590288

約数和(自身を除く): 1640389

約数列:

[1, 17, 71, 289, 1021, 1207, 17357, 20519, 72491, 295069, 1232347, 20949899]

約数ペア:

[(1, 20949899), (17, 1232347), (71, 295069), (289, 72491), (1021, 20519), (1207, 17357)]