21353794

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{138661}}^1$

素因数の和:138681

約数の個数: 16

約数和(自身を含む): 39934656

約数和(自身を除く): 18580862

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 138661, 277322, 970627, 1525271, 1941254, 3050542, 10676897, 21353794]

約数ペア:

[(1, 21353794), (2, 10676897), (7, 3050542), (11, 1941254), (14, 1525271), (22, 970627), (77, 277322), (154, 138661)]