81969321

素因数分解:

$3^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{15551}}^1$

素因数の和:15812

約数の個数: 16

約数和(自身を含む): 125411328

約数和(自身を除く): 43442007

約数列:

[1, 3, 7, 21, 251, 753, 1757, 5271, 15551, 46653, 108857, 326571, 3903301, 11709903, 27323107, 81969321]

約数ペア:

[(1, 81969321), (3, 27323107), (7, 11709903), (21, 3903301), (251, 326571), (753, 108857), (1757, 46653), (5271, 15551)]