19821627

素因数分解:

$3^2\times 7^3\times {\mathrm{6421}}^1$

素因数の和:6448

約数の個数: 24

約数和(自身を含む): 33394400

約数和(自身を除く): 13572773

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6421, 19263, 44947, 57789, 134841, 314629, 404523, 943887, 2202403, 2831661, 6607209, 19821627]

約数ペア:

[(1, 19821627), (3, 6607209), (7, 2831661), (9, 2202403), (21, 943887), (49, 404523), (63, 314629), (147, 134841), (343, 57789), (441, 44947), (1029, 19263), (3087, 6421)]