21000910

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{42859}}^1$

素因数の和:42880

約数の個数: 24

約数和(自身を含む): 43974360

約数和(自身を除く): 22973450

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 42859, 85718, 214295, 300013, 428590, 600026, 1500065, 2100091, 3000130, 4200182, 10500455, 21000910]

約数ペア:

[(1, 21000910), (2, 10500455), (5, 4200182), (7, 3000130), (10, 2100091), (14, 1500065), (35, 600026), (49, 428590), (70, 300013), (98, 214295), (245, 85718), (490, 42859)]