21171465

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{67211}}^1$

素因数の和:67229

約数の個数: 24

約数和(自身を含む): 41940288

約数和(自身を除く): 20768823

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 67211, 201633, 336055, 470477, 604899, 1008165, 1411431, 2352385, 3024495, 4234293, 7057155, 21171465]

約数ペア:

[(1, 21171465), (3, 7057155), (5, 4234293), (7, 3024495), (9, 2352385), (15, 1411431), (21, 1008165), (35, 604899), (45, 470477), (63, 336055), (105, 201633), (315, 67211)]