20970297411

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1\times {\mathrm{13789}}^1$

素因数の和:14459

約数の個数: 32

約数和(自身を含む): 32248742400

約数和(自身を除く): 11278444989

約数列:

[1, 3, 7, 21, 139, 417, 521, 973, 1563, 2919, 3647, 10941, 13789, 41367, 72419, 96523, 217257, 289569, 506933, 1520799, 1916671, 5750013, 7184069, 13416697, 21552207, 40250091, 50288483, 150865449, 998585591, 2995756773, 6990099137, 20970297411]

約数ペア:

[(1, 20970297411), (3, 6990099137), (7, 2995756773), (21, 998585591), (139, 150865449), (417, 50288483), (521, 40250091), (973, 21552207), (1563, 13416697), (2919, 7184069), (3647, 5750013), (10941, 1916671), (13789, 1520799), (41367, 506933), (72419, 289569), (96523, 217257)]