20841951

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17239}}^1$

素因数の和:17286

約数の個数: 16

約数和(自身を含む): 30894080

約数和(自身を除く): 10052129

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 17239, 51717, 224107, 534409, 672321, 1603227, 6947317, 20841951]

約数ペア:

[(1, 20841951), (3, 6947317), (13, 1603227), (31, 672321), (39, 534409), (93, 224107), (403, 51717), (1209, 17239)]