20920557

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{58601}}^1$

素因数の和:58628

約数の個数: 16

約数和(自身を含む): 33754752

約数和(自身を除く): 12834195

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 58601, 175803, 410207, 996217, 1230621, 2988651, 6973519, 20920557]

約数ペア:

[(1, 20920557), (3, 6973519), (7, 2988651), (17, 1230621), (21, 996217), (51, 410207), (119, 175803), (357, 58601)]