21000958

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{15649}}^1$

素因数の和:15723

約数の個数: 16

約数和(自身を含む): 34930800

約数和(自身を除く): 13929842

約数列:

[1, 2, 11, 22, 61, 122, 671, 1342, 15649, 31298, 172139, 344278, 954589, 1909178, 10500479, 21000958]

約数ペア:

[(1, 21000958), (2, 10500479), (11, 1909178), (22, 954589), (61, 344278), (122, 172139), (671, 31298), (1342, 15649)]