208025649

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{136769}}^1$

素因数の和:136801

約数の個数: 18

約数和(自身を含む): 325375830

約数和(自身を除く): 117350181

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 136769, 410307, 1230921, 1777997, 5333991, 16001973, 23113961, 69341883, 208025649]

約数ペア:

[(1, 208025649), (3, 69341883), (9, 23113961), (13, 16001973), (39, 5333991), (117, 1777997), (169, 1230921), (507, 410307), (1521, 136769)]