81265209

素因数分解:

$3^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 114000768

約数和(自身を除く): 32735559

約数列:

[1, 3, 37, 47, 111, 141, 421, 1263, 1369, 1739, 4107, 5217, 15577, 19787, 46731, 59361, 64343, 193029, 576349, 732119, 1729047, 2196357, 27088403, 81265209]

約数ペア:

[(1, 81265209), (3, 27088403), (37, 2196357), (47, 1729047), (111, 732119), (141, 576349), (421, 193029), (1263, 64343), (1369, 59361), (1739, 46731), (4107, 19787), (5217, 15577)]