81963329

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{72727}}^1$

素因数の和:72764

約数の個数: 12

約数和(自身を含む): 99491904

約数和(自身を除く): 17528575

約数列:

[1, 7, 23, 49, 161, 1127, 72727, 509089, 1672721, 3563623, 11709047, 81963329]

約数ペア:

[(1, 81963329), (7, 11709047), (23, 3563623), (49, 1672721), (161, 509089), (1127, 72727)]