81112213

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{28753}}^1$

素因数の和:28804

約数の個数: 16

約数和(自身を含む): 103054336

約数和(自身を除く): 21942123

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 28753, 201271, 373789, 891343, 2616523, 6239401, 11587459, 81112213]

約数ペア:

[(1, 81112213), (7, 11587459), (13, 6239401), (31, 2616523), (91, 891343), (217, 373789), (403, 201271), (2821, 28753)]