19875410

素因数分解:

$2^1\times 5^1\times {\mathrm{421}}^1\times {\mathrm{4721}}^1$

素因数の和:5149

約数の個数: 16

約数和(自身を含む): 35868312

約数和(自身を除く): 15992902

約数列:

[1, 2, 5, 10, 421, 842, 2105, 4210, 4721, 9442, 23605, 47210, 1987541, 3975082, 9937705, 19875410]

約数ペア:

[(1, 19875410), (2, 9937705), (5, 3975082), (10, 1987541), (421, 47210), (842, 23605), (2105, 9442), (4210, 4721)]