21251164

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{3803}}^1$

素因数の和:3945

約数の個数: 24

約数和(自身を含む): 40900608

約数和(自身を除く): 19649444

約数列:

[1, 2, 4, 11, 22, 44, 127, 254, 508, 1397, 2794, 3803, 5588, 7606, 15212, 41833, 83666, 167332, 482981, 965962, 1931924, 5312791, 10625582, 21251164]

約数ペア:

[(1, 21251164), (2, 10625582), (4, 5312791), (11, 1931924), (22, 965962), (44, 482981), (127, 167332), (254, 83666), (508, 41833), (1397, 15212), (2794, 7606), (3803, 5588)]