19971678

素因数分解:

$2^1\times 3^1\times {\mathrm{431}}^1\times {\mathrm{7723}}^1$

素因数の和:8159

約数の個数: 16

約数和(自身を含む): 40041216

約数和(自身を除く): 20069538

約数列:

[1, 2, 3, 6, 431, 862, 1293, 2586, 7723, 15446, 23169, 46338, 3328613, 6657226, 9985839, 19971678]

約数ペア:

[(1, 19971678), (2, 9985839), (3, 6657226), (6, 3328613), (431, 46338), (862, 23169), (1293, 15446), (2586, 7723)]