81971567279

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{1979}}^1\times {\mathrm{144323}}^1$

素因数の和:146350

約数の個数: 16

約数和(自身を含む): 96015870720

約数和(自身を除く): 14044303441

約数列:

[1, 7, 41, 287, 1979, 13853, 81139, 144323, 567973, 1010261, 5917243, 41420701, 285615217, 1999306519, 11710223897, 81971567279]

約数ペア:

[(1, 81971567279), (7, 11710223897), (41, 1999306519), (287, 285615217), (1979, 41420701), (13853, 5917243), (81139, 1010261), (144323, 567973)]