21169395

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36187}}^1$

素因数の和:36211

約数の個数: 24

約数和(自身を含む): 39517296

約数和(自身を除く): 18347901

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36187, 108561, 180935, 325683, 470431, 542805, 1411293, 1628415, 2352155, 4233879, 7056465, 21169395]

約数ペア:

[(1, 21169395), (3, 7056465), (5, 4233879), (9, 2352155), (13, 1628415), (15, 1411293), (39, 542805), (45, 470431), (65, 325683), (117, 180935), (195, 108561), (585, 36187)]