21876260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{156259}}^1$

素因数の和:156275

約数の個数: 24

約数和(自身を含む): 52503360

約数和(自身を除く): 30627100

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 156259, 312518, 625036, 781295, 1093813, 1562590, 2187626, 3125180, 4375252, 5469065, 10938130, 21876260]

約数ペア:

[(1, 21876260), (2, 10938130), (4, 5469065), (5, 4375252), (7, 3125180), (10, 2187626), (14, 1562590), (20, 1093813), (28, 781295), (35, 625036), (70, 312518), (140, 156259)]