20802155

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{613}}^1\times {\mathrm{617}}^1$

素因数の和:1246

約数の個数: 16

約数和(自身を含む): 27320544

約数和(自身を除く): 6518389

約数列:

[1, 5, 11, 55, 613, 617, 3065, 3085, 6743, 6787, 33715, 33935, 378221, 1891105, 4160431, 20802155]

約数ペア:

[(1, 20802155), (5, 4160431), (11, 1891105), (55, 378221), (613, 33935), (617, 33715), (3065, 6787), (3085, 6743)]