31990231

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{419}}^1\times {\mathrm{839}}^1$

素因数の和:1278

約数の個数: 16

約数和(自身を含む): 39513600

約数和(自身を除く): 7523369

約数列:

[1, 7, 13, 91, 419, 839, 2933, 5447, 5873, 10907, 38129, 76349, 351541, 2460787, 4570033, 31990231]

約数ペア:

[(1, 31990231), (7, 4570033), (13, 2460787), (91, 351541), (419, 76349), (839, 38129), (2933, 10907), (5447, 5873)]