20891794

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{135661}}^1$

素因数の和:135681

約数の個数: 16

約数和(自身を含む): 39070656

約数和(自身を除く): 18178862

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 135661, 271322, 949627, 1492271, 1899254, 2984542, 10445897, 20891794]

約数ペア:

[(1, 20891794), (2, 10445897), (7, 2984542), (11, 1899254), (14, 1492271), (22, 949627), (77, 271322), (154, 135661)]