81207903

素因数分解:

$3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{17341}}^1$

素因数の和:17574

約数の個数: 16

約数和(自身を含む): 124307456

約数和(自身を除く): 43099553

約数列:

[1, 3, 7, 21, 223, 669, 1561, 4683, 17341, 52023, 121387, 364161, 3867043, 11601129, 27069301, 81207903]

約数ペア:

[(1, 81207903), (3, 27069301), (7, 11601129), (21, 3867043), (223, 364161), (669, 121387), (1561, 52023), (4683, 17341)]