21495050

素因数分解:

$2^1\times 5^2\times {\mathrm{429901}}^1$

素因数の和:429913

約数の個数: 12

約数和(自身を含む): 39980886

約数和(自身を除く): 18485836

約数列:

[1, 2, 5, 10, 25, 50, 429901, 859802, 2149505, 4299010, 10747525, 21495050]

約数ペア:

[(1, 21495050), (2, 10747525), (5, 4299010), (10, 2149505), (25, 859802), (50, 429901)]