21433780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{24923}}^1$

素因数の和:24975

約数の個数: 24

約数和(自身を含む): 46059552

約数和(自身を除く): 24625772

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 24923, 49846, 99692, 124615, 249230, 498460, 1071689, 2143378, 4286756, 5358445, 10716890, 21433780]

約数ペア:

[(1, 21433780), (2, 10716890), (4, 5358445), (5, 4286756), (10, 2143378), (20, 1071689), (43, 498460), (86, 249230), (172, 124615), (215, 99692), (430, 49846), (860, 24923)]