21084471

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7253}}^1$

素因数の和:7295

約数の個数: 24

約数和(自身を含む): 33948720

約数和(自身を除く): 12864249

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 969, 2907, 7253, 21759, 65277, 123301, 137807, 369903, 413421, 1109709, 1240263, 2342719, 7028157, 21084471]

約数ペア:

[(1, 21084471), (3, 7028157), (9, 2342719), (17, 1240263), (19, 1109709), (51, 413421), (57, 369903), (153, 137807), (171, 123301), (323, 65277), (969, 21759), (2907, 7253)]