81420879

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{7643}}^1$

素因数の和:7766

約数の個数: 16

約数和(自身を含む): 112275072

約数和(自身を除く): 30854193

約数列:

[1, 3, 53, 67, 159, 201, 3551, 7643, 10653, 22929, 405079, 512081, 1215237, 1536243, 27140293, 81420879]

約数ペア:

[(1, 81420879), (3, 27140293), (53, 1536243), (67, 1215237), (159, 512081), (201, 405079), (3551, 22929), (7643, 10653)]