20641315

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{12781}}^1$

素因数の和:12822

約数の個数: 16

約数和(自身を含む): 27609120

約数和(自身を除く): 6967805

約数列:

[1, 5, 17, 19, 85, 95, 323, 1615, 12781, 63905, 217277, 242839, 1086385, 1214195, 4128263, 20641315]

約数ペア:

[(1, 20641315), (5, 4128263), (17, 1214195), (19, 1086385), (85, 242839), (95, 217277), (323, 63905), (1615, 12781)]