19381683

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{907}}^1$

素因数の和:1346

約数の個数: 16

約数和(自身を含む): 27457920

約数和(自身を除く): 8076237

約数列:

[1, 3, 17, 51, 419, 907, 1257, 2721, 7123, 15419, 21369, 46257, 380033, 1140099, 6460561, 19381683]

約数ペア:

[(1, 19381683), (3, 6460561), (17, 1140099), (51, 380033), (419, 46257), (907, 21369), (1257, 15419), (2721, 7123)]