21200278

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{4993}}^1$

素因数の和:5199

約数の個数: 16

約数和(自身を含む): 34878096

約数和(自身を除く): 13677818

約数列:

[1, 2, 11, 22, 193, 386, 2123, 4246, 4993, 9986, 54923, 109846, 963649, 1927298, 10600139, 21200278]

約数ペア:

[(1, 21200278), (2, 10600139), (11, 1927298), (22, 963649), (193, 109846), (386, 54923), (2123, 9986), (4246, 4993)]