19137391

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{2311}}^1$

素因数の和:2351

約数の個数: 18

約数和(自身を含む): 24116472

約数和(自身を除く): 4979081

約数列:

[1, 7, 13, 49, 91, 169, 637, 1183, 2311, 8281, 16177, 30043, 113239, 210301, 390559, 1472107, 2733913, 19137391]

約数ペア:

[(1, 19137391), (7, 2733913), (13, 1472107), (49, 390559), (91, 210301), (169, 113239), (637, 30043), (1183, 16177), (2311, 8281)]