21492429

素因数分解:

$3^1\times 7^2\times {\mathrm{293}}^1\times {\mathrm{499}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 33516000

約数和(自身を除く): 12023571

約数列:

[1, 3, 7, 21, 49, 147, 293, 499, 879, 1497, 2051, 3493, 6153, 10479, 14357, 24451, 43071, 73353, 146207, 438621, 1023449, 3070347, 7164143, 21492429]

約数ペア:

[(1, 21492429), (3, 7164143), (7, 3070347), (21, 1023449), (49, 438621), (147, 146207), (293, 73353), (499, 43071), (879, 24451), (1497, 14357), (2051, 10479), (3493, 6153)]