21842810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{198571}}^1$

素因数の和:198589

約数の個数: 16

約数和(自身を含む): 42891552

約数和(自身を除く): 21048742

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 198571, 397142, 992855, 1985710, 2184281, 4368562, 10921405, 21842810]

約数ペア:

[(1, 21842810), (2, 10921405), (5, 4368562), (10, 2184281), (11, 1985710), (22, 992855), (55, 397142), (110, 198571)]