1331517

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:428

約数の個数: 16

約数和(自身を含む): 1956672

約数和(自身を除く): 625155

約数列:

[1, 3, 11, 33, 157, 257, 471, 771, 1727, 2827, 5181, 8481, 40349, 121047, 443839, 1331517]

約数ペア:

[(1, 1331517), (3, 443839), (11, 121047), (33, 40349), (157, 8481), (257, 5181), (471, 2827), (771, 1727)]