21870884

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{33961}}^1$

素因数の和:33995

約数の個数: 24

約数和(自身を含む): 45644928

約数和(自身を除く): 23774044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 33961, 67922, 135844, 237727, 475454, 781103, 950908, 1562206, 3124412, 5467721, 10935442, 21870884]

約数ペア:

[(1, 21870884), (2, 10935442), (4, 5467721), (7, 3124412), (14, 1562206), (23, 950908), (28, 781103), (46, 475454), (92, 237727), (161, 135844), (322, 67922), (644, 33961)]