20951485

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{1103}}^1$

素因数の和:1268

約数の個数: 16

約数和(自身を含む): 26231040

約数和(自身を除く): 5279555

約数列:

[1, 5, 29, 131, 145, 655, 1103, 3799, 5515, 18995, 31987, 144493, 159935, 722465, 4190297, 20951485]

約数ペア:

[(1, 20951485), (5, 4190297), (29, 722465), (131, 159935), (145, 144493), (655, 31987), (1103, 18995), (3799, 5515)]