206397

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:113

約数の個数: 24

約数和(自身を含む): 336960

約数和(自身を除く): 130563

約数列:

[1, 3, 9, 17, 19, 51, 57, 71, 153, 171, 213, 323, 639, 969, 1207, 1349, 2907, 3621, 4047, 10863, 12141, 22933, 68799, 206397]

約数ペア:

[(1, 206397), (3, 68799), (9, 22933), (17, 12141), (19, 10863), (51, 4047), (57, 3621), (71, 2907), (153, 1349), (171, 1207), (213, 969), (323, 639)]