1662891

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1$

素因数の和:322

約数の個数: 16

約数和(自身を含む): 2320128

約数和(自身を除く): 657237

約数列:

[1, 3, 37, 71, 111, 211, 213, 633, 2627, 7807, 7881, 14981, 23421, 44943, 554297, 1662891]

約数ペア:

[(1, 1662891), (3, 554297), (37, 44943), (71, 23421), (111, 14981), (211, 7881), (213, 7807), (633, 2627)]