20794809

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{7559}}^1$

素因数の和:7700

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 11138631

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 7559, 22677, 52913, 158739, 990229, 2970687, 6931603, 20794809]

約数ペア:

[(1, 20794809), (3, 6931603), (7, 2970687), (21, 990229), (131, 158739), (393, 52913), (917, 22677), (2751, 7559)]