28441881

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{81031}}^1$

素因数の和:81053

約数の個数: 16

約数和(自身を含む): 45377920

約数和(自身を除く): 16936039

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 81031, 243093, 729279, 1053403, 2187837, 3160209, 9480627, 28441881]

約数ペア:

[(1, 28441881), (3, 9480627), (9, 3160209), (13, 2187837), (27, 1053403), (39, 729279), (117, 243093), (351, 81031)]