21232729

素因数分解:

$7^3\times {\mathrm{103}}^1\times {\mathrm{601}}^1$

素因数の和:725

約数の個数: 16

約数和(自身を含む): 25043200

約数和(自身を除く): 3810471

約数列:

[1, 7, 49, 103, 343, 601, 721, 4207, 5047, 29449, 35329, 61903, 206143, 433321, 3033247, 21232729]

約数ペア:

[(1, 21232729), (7, 3033247), (49, 433321), (103, 206143), (343, 61903), (601, 35329), (721, 29449), (4207, 5047)]