21657356

素因数分解:

$2^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{9319}}^1$

素因数の和:9413

約数の個数: 24

約数和(自身を含む): 43841280

約数和(自身を除く): 22183924

約数列:

[1, 2, 4, 7, 14, 28, 83, 166, 332, 581, 1162, 2324, 9319, 18638, 37276, 65233, 130466, 260932, 773477, 1546954, 3093908, 5414339, 10828678, 21657356]

約数ペア:

[(1, 21657356), (2, 10828678), (4, 5414339), (7, 3093908), (14, 1546954), (28, 773477), (83, 260932), (166, 130466), (332, 65233), (581, 37276), (1162, 18638), (2324, 9319)]