21194516

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7349}}^1$

素因数の和:7463

約数の個数: 24

約数和(自身を含む): 42806400

約数和(自身を除く): 21611884

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7349, 14698, 29396, 51443, 102886, 205772, 756947, 1513894, 3027788, 5298629, 10597258, 21194516]

約数ペア:

[(1, 21194516), (2, 10597258), (4, 5298629), (7, 3027788), (14, 1513894), (28, 756947), (103, 205772), (206, 102886), (412, 51443), (721, 29396), (1442, 14698), (2884, 7349)]