80268741

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{20887}}^1$

素因数の和:20961

約数の個数: 24

約数和(自身を含む): 134685824

約数和(自身を除く): 54417083

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 20887, 62661, 146209, 187983, 438627, 1274107, 1315881, 3822321, 8918749, 11466963, 26756247, 80268741]

約数ペア:

[(1, 80268741), (3, 26756247), (7, 11466963), (9, 8918749), (21, 3822321), (61, 1315881), (63, 1274107), (183, 438627), (427, 187983), (549, 146209), (1281, 62661), (3843, 20887)]