20526471

素因数分解:

$3^2\times 7^1\times {\mathrm{167}}^1\times {\mathrm{1951}}^1$

素因数の和:2131

約数の個数: 24

約数和(自身を含む): 34105344

約数和(自身を除く): 13578873

約数列:

[1, 3, 7, 9, 21, 63, 167, 501, 1169, 1503, 1951, 3507, 5853, 10521, 13657, 17559, 40971, 122913, 325817, 977451, 2280719, 2932353, 6842157, 20526471]

約数ペア:

[(1, 20526471), (3, 6842157), (7, 2932353), (9, 2280719), (21, 977451), (63, 325817), (167, 122913), (501, 40971), (1169, 17559), (1503, 13657), (1951, 10521), (3507, 5853)]