20200539

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1\times {\mathrm{919}}^1$

素因数の和:1370

約数の個数: 16

約数和(自身を含む): 28615680

約数和(自身を除く): 8415141

約数列:

[1, 3, 17, 51, 431, 919, 1293, 2757, 7327, 15623, 21981, 46869, 396089, 1188267, 6733513, 20200539]

約数ペア:

[(1, 20200539), (3, 6733513), (17, 1188267), (51, 396089), (431, 46869), (919, 21981), (1293, 15623), (2757, 7327)]