13209861

素因数分解:

$3^1\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1231}}^1$

素因数の和:1321

約数の個数: 24

約数和(自身を含む): 20786304

約数和(自身を除く): 7576443

約数列:

[1, 3, 7, 21, 49, 73, 147, 219, 511, 1231, 1533, 3577, 3693, 8617, 10731, 25851, 60319, 89863, 180957, 269589, 629041, 1887123, 4403287, 13209861]

約数ペア:

[(1, 13209861), (3, 4403287), (7, 1887123), (21, 629041), (49, 269589), (73, 180957), (147, 89863), (219, 60319), (511, 25851), (1231, 10731), (1533, 8617), (3577, 3693)]