2021840828

素因数分解:

$2^2\times 7^1\times {\mathrm{72208601}}^1$

素因数の和:72208612

約数の個数: 12

約数和(自身を含む): 4043681712

約数和(自身を除く): 2021840884

約数列:

[1, 2, 4, 7, 14, 28, 72208601, 144417202, 288834404, 505460207, 1010920414, 2021840828]

約数ペア:

[(1, 2021840828), (2, 1010920414), (4, 505460207), (7, 288834404), (14, 144417202), (28, 72208601)]