21086206

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{317}}^1\times {\mathrm{421}}^1$

素因数の和:819

約数の個数: 16

約数和(自身を含む): 32207040

約数和(自身を除く): 11120834

約数列:

[1, 2, 79, 158, 317, 421, 634, 842, 25043, 33259, 50086, 66518, 133457, 266914, 10543103, 21086206]

約数ペア:

[(1, 21086206), (2, 10543103), (79, 266914), (158, 133457), (317, 66518), (421, 50086), (634, 33259), (842, 25043)]