13120289

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{479}}^1$

素因数の和:549

約数の個数: 24

約数和(自身を含む): 16853760

約数和(自身を除く): 3733471

約数列:

[1, 7, 13, 43, 49, 91, 301, 479, 559, 637, 2107, 3353, 3913, 6227, 20597, 23471, 27391, 43589, 144179, 267761, 305123, 1009253, 1874327, 13120289]

約数ペア:

[(1, 13120289), (7, 1874327), (13, 1009253), (43, 305123), (49, 267761), (91, 144179), (301, 43589), (479, 27391), (559, 23471), (637, 20597), (2107, 6227), (3353, 3913)]