21894410

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53401}}^1$

素因数の和:53449

約数の個数: 16

約数和(自身を含む): 40371912

約数和(自身を除く): 18477502

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 53401, 106802, 267005, 534010, 2189441, 4378882, 10947205, 21894410]

約数ペア:

[(1, 21894410), (2, 10947205), (5, 4378882), (10, 2189441), (41, 534010), (82, 267005), (205, 106802), (410, 53401)]