21240650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{24989}}^1$

素因数の和:25018

約数の個数: 24

約数和(自身を含む): 41833260

約数和(自身を除く): 20592610

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425, 850, 24989, 49978, 124945, 249890, 424813, 624725, 849626, 1249450, 2124065, 4248130, 10620325, 21240650]

約数ペア:

[(1, 21240650), (2, 10620325), (5, 4248130), (10, 2124065), (17, 1249450), (25, 849626), (34, 624725), (50, 424813), (85, 249890), (170, 124945), (425, 49978), (850, 24989)]