19953393

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1637}}^1$

素因数の和:1896

約数の個数: 16

約数和(自身を含む): 28304640

約数和(自身を除く): 8351247

約数列:

[1, 3, 17, 51, 239, 717, 1637, 4063, 4911, 12189, 27829, 83487, 391243, 1173729, 6651131, 19953393]

約数ペア:

[(1, 19953393), (3, 6651131), (17, 1173729), (51, 391243), (239, 83487), (717, 27829), (1637, 12189), (4063, 4911)]