21738350

素因数分解:

$2^1\times 5^2\times {\mathrm{409}}^1\times {\mathrm{1063}}^1$

素因数の和:1484

約数の個数: 24

約数和(自身を含む): 40570320

約数和(自身を除く): 18831970

約数列:

[1, 2, 5, 10, 25, 50, 409, 818, 1063, 2045, 2126, 4090, 5315, 10225, 10630, 20450, 26575, 53150, 434767, 869534, 2173835, 4347670, 10869175, 21738350]

約数ペア:

[(1, 21738350), (2, 10869175), (5, 4347670), (10, 2173835), (25, 869534), (50, 434767), (409, 53150), (818, 26575), (1063, 20450), (2045, 10630), (2126, 10225), (4090, 5315)]