20389868

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{13037}}^1$

素因数の和:13081

約数の個数: 24

約数和(自身を含む): 39426912

約数和(自身を除く): 19037044

約数列:

[1, 2, 4, 17, 23, 34, 46, 68, 92, 391, 782, 1564, 13037, 26074, 52148, 221629, 299851, 443258, 599702, 886516, 1199404, 5097467, 10194934, 20389868]

約数ペア:

[(1, 20389868), (2, 10194934), (4, 5097467), (17, 1199404), (23, 886516), (34, 599702), (46, 443258), (68, 299851), (92, 221629), (391, 52148), (782, 26074), (1564, 13037)]