20958243

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{4391}}^1$

素因数の和:4474

約数の個数: 16

約数和(自身を含む): 29373696

約数和(自身を除く): 8415453

約数列:

[1, 3, 37, 43, 111, 129, 1591, 4391, 4773, 13173, 162467, 188813, 487401, 566439, 6986081, 20958243]

約数ペア:

[(1, 20958243), (3, 6986081), (37, 566439), (43, 487401), (111, 188813), (129, 162467), (1591, 13173), (4391, 4773)]