20287306

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{4787}}^1$

素因数の和:4965

約数の個数: 16

約数和(自身を含む): 32979744

約数和(自身を除く): 12692438

約数列:

[1, 2, 13, 26, 163, 326, 2119, 4238, 4787, 9574, 62231, 124462, 780281, 1560562, 10143653, 20287306]

約数ペア:

[(1, 20287306), (2, 10143653), (13, 1560562), (26, 780281), (163, 124462), (326, 62231), (2119, 9574), (4238, 4787)]