81955391

素因数分解:

$7^3\times {\mathrm{61}}^1\times {\mathrm{3917}}^1$

素因数の和:3999

約数の個数: 16

約数和(自身を含む): 97166400

約数和(自身を除く): 15211009

約数列:

[1, 7, 49, 61, 343, 427, 2989, 3917, 20923, 27419, 191933, 238937, 1343531, 1672559, 11707913, 81955391]

約数ペア:

[(1, 81955391), (7, 11707913), (49, 1672559), (61, 1343531), (343, 238937), (427, 191933), (2989, 27419), (3917, 20923)]