21241671

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{163}}^1\times {\mathrm{359}}^1$

素因数の和:547

約数の個数: 24

約数和(自身を含む): 31409280

約数和(自身を除く): 10167609

約数列:

[1, 3, 11, 33, 121, 163, 359, 363, 489, 1077, 1793, 3949, 5379, 11847, 19723, 43439, 58517, 59169, 130317, 175551, 643687, 1931061, 7080557, 21241671]

約数ペア:

[(1, 21241671), (3, 7080557), (11, 1931061), (33, 643687), (121, 175551), (163, 130317), (359, 59169), (363, 58517), (489, 43439), (1077, 19723), (1793, 11847), (3949, 5379)]