20215617

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{887}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 27620352

約数和(自身を除く): 7404735

約数列:

[1, 3, 71, 107, 213, 321, 887, 2661, 7597, 22791, 62977, 94909, 188931, 284727, 6738539, 20215617]

約数ペア:

[(1, 20215617), (3, 6738539), (71, 284727), (107, 188931), (213, 94909), (321, 62977), (887, 22791), (2661, 7597)]