21896890

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50923}}^1$

素因数の和:50973

約数の個数: 16

約数和(自身を含む): 40331808

約数和(自身を除く): 18434918

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 50923, 101846, 254615, 509230, 2189689, 4379378, 10948445, 21896890]

約数ペア:

[(1, 21896890), (2, 10948445), (5, 4379378), (10, 2189689), (43, 509230), (86, 254615), (215, 101846), (430, 50923)]