21962410

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{20149}}^1$

素因数の和:20265

約数の個数: 16

約数和(自身を含む): 39897000

約数和(自身を除く): 17934590

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 20149, 40298, 100745, 201490, 2196241, 4392482, 10981205, 21962410]

約数ペア:

[(1, 21962410), (2, 10981205), (5, 4392482), (10, 2196241), (109, 201490), (218, 100745), (545, 40298), (1090, 20149)]