20389856

素因数分解:

$2^5\times {\mathrm{521}}^1\times {\mathrm{1223}}^1$

素因数の和:1754

約数の個数: 24

約数和(自身を含む): 40252464

約数和(自身を除く): 19862608

約数列:

[1, 2, 4, 8, 16, 32, 521, 1042, 1223, 2084, 2446, 4168, 4892, 8336, 9784, 16672, 19568, 39136, 637183, 1274366, 2548732, 5097464, 10194928, 20389856]

約数ペア:

[(1, 20389856), (2, 10194928), (4, 5097464), (8, 2548732), (16, 1274366), (32, 637183), (521, 39136), (1042, 19568), (1223, 16672), (2084, 9784), (2446, 8336), (4168, 4892)]