347721

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:312

約数の個数: 16

約数和(自身を含む): 520128

約数和(自身を除く): 172407

約数列:

[1, 3, 11, 33, 41, 123, 257, 451, 771, 1353, 2827, 8481, 10537, 31611, 115907, 347721]

約数ペア:

[(1, 347721), (3, 115907), (11, 31611), (33, 10537), (41, 8481), (123, 2827), (257, 1353), (451, 771)]