201657589

素因数分解:

$7^4\times {\mathrm{47}}^1\times {\mathrm{1787}}^1$

素因数の和:1862

約数の個数: 20

約数和(自身を含む): 240393024

約数和(自身を除く): 38735435

約数列:

[1, 7, 47, 49, 329, 343, 1787, 2303, 2401, 12509, 16121, 83989, 87563, 112847, 587923, 612941, 4115461, 4290587, 28808227, 201657589]

約数ペア:

[(1, 201657589), (7, 28808227), (47, 4290587), (49, 4115461), (329, 612941), (343, 587923), (1787, 112847), (2303, 87563), (2401, 83989), (12509, 16121)]