489141

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 786240

約数和(自身を除く): 297099

約数列:

[1, 3, 9, 17, 23, 51, 69, 139, 153, 207, 391, 417, 1173, 1251, 2363, 3197, 3519, 7089, 9591, 21267, 28773, 54349, 163047, 489141]

約数ペア:

[(1, 489141), (3, 163047), (9, 54349), (17, 28773), (23, 21267), (51, 9591), (69, 7089), (139, 3519), (153, 3197), (207, 2363), (391, 1251), (417, 1173)]