20139472988

素因数分解:

$2^2\times {\mathrm{421}}^1\times {\mathrm{2339}}^1\times {\mathrm{5113}}^1$

素因数の和:7877

約数の個数: 24

約数和(自身を含む): 35349809040

約数和(自身を除く): 15210336052

約数列:

[1, 2, 4, 421, 842, 1684, 2339, 4678, 5113, 9356, 10226, 20452, 984719, 1969438, 2152573, 3938876, 4305146, 8610292, 11959307, 23918614, 47837228, 5034868247, 10069736494, 20139472988]

約数ペア:

[(1, 20139472988), (2, 10069736494), (4, 5034868247), (421, 47837228), (842, 23918614), (1684, 11959307), (2339, 8610292), (4678, 4305146), (5113, 3938876), (9356, 2152573), (10226, 1969438), (20452, 984719)]