205215789

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{211781}}^1$

素因数の和:211820

約数の個数: 16

約数和(自身を含む): 304966080

約数和(自身を除く): 99750291

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 211781, 635343, 3600277, 4023839, 10800831, 12071517, 68405263, 205215789]

約数ペア:

[(1, 205215789), (3, 68405263), (17, 12071517), (19, 10800831), (51, 4023839), (57, 3600277), (323, 635343), (969, 211781)]