19921569

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{4027}}^1$

素因数の和:4144

約数の個数: 16

約数和(自身を含む): 28421568

約数和(自身を除く): 8499999

約数列:

[1, 3, 17, 51, 97, 291, 1649, 4027, 4947, 12081, 68459, 205377, 390619, 1171857, 6640523, 19921569]

約数ペア:

[(1, 19921569), (3, 6640523), (17, 1171857), (51, 390619), (97, 205377), (291, 68459), (1649, 12081), (4027, 4947)]