21630490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{309007}}^1$

素因数の和:309021

約数の個数: 16

約数和(自身を含む): 44497152

約数和(自身を除く): 22866662

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 309007, 618014, 1545035, 2163049, 3090070, 4326098, 10815245, 21630490]

約数ペア:

[(1, 21630490), (2, 10815245), (5, 4326098), (7, 3090070), (10, 2163049), (14, 1545035), (35, 618014), (70, 309007)]