19782681

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1\times {\mathrm{757}}^1$

素因数の和:1072

約数の個数: 16

約数和(自身を含む): 27360768

約数和(自身を除く): 7578087

約数列:

[1, 3, 31, 93, 281, 757, 843, 2271, 8711, 23467, 26133, 70401, 212717, 638151, 6594227, 19782681]

約数ペア:

[(1, 19782681), (3, 6594227), (31, 638151), (93, 212717), (281, 70401), (757, 26133), (843, 23467), (2271, 8711)]