81964519

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{5737}}^1$

素因数の和:5914

約数の個数: 16

約数和(自身を含む): 101539648

約数和(自身を除く): 19575129

約数列:

[1, 7, 13, 91, 157, 1099, 2041, 5737, 14287, 40159, 74581, 522067, 900709, 6304963, 11709217, 81964519]

約数ペア:

[(1, 81964519), (7, 11709217), (13, 6304963), (91, 900709), (157, 522067), (1099, 74581), (2041, 40159), (5737, 14287)]