20215988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{16903}}^1$

素因数の和:16943

約数の個数: 24

約数和(自身を含む): 39758208

約数和(自身を除く): 19542220

約数列:

[1, 2, 4, 13, 23, 26, 46, 52, 92, 299, 598, 1196, 16903, 33806, 67612, 219739, 388769, 439478, 777538, 878956, 1555076, 5053997, 10107994, 20215988]

約数ペア:

[(1, 20215988), (2, 10107994), (4, 5053997), (13, 1555076), (23, 878956), (26, 777538), (46, 439478), (52, 388769), (92, 219739), (299, 67612), (598, 33806), (1196, 16903)]