21007058

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1\times {\mathrm{421}}^1$

素因数の和:893

約数の個数: 16

約数和(自身を含む): 32181720

約数和(自身を除く): 11174662

約数列:

[1, 2, 61, 122, 409, 421, 818, 842, 24949, 25681, 49898, 51362, 172189, 344378, 10503529, 21007058]

約数ペア:

[(1, 21007058), (2, 10503529), (61, 344378), (122, 172189), (409, 51362), (421, 49898), (818, 25681), (842, 24949)]