211040025

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{401981}}^1$

素因数の和:402001

約数の個数: 24

約数和(自身を含む): 398766144

約数和(自身を除く): 187726119

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 401981, 1205943, 2009905, 2813867, 6029715, 8441601, 10049525, 14069335, 30148575, 42208005, 70346675, 211040025]

約数ペア:

[(1, 211040025), (3, 70346675), (5, 42208005), (7, 30148575), (15, 14069335), (21, 10049525), (25, 8441601), (35, 6029715), (75, 2813867), (105, 2009905), (175, 1205943), (525, 401981)]