207767997

素因数分解:

$3^4\times {\mathrm{151}}^1\times {\mathrm{16987}}^1$

素因数の和:17150

約数の個数: 20

約数和(自身を含む): 312443296

約数和(自身を除く): 104675299

約数列:

[1, 3, 9, 27, 81, 151, 453, 1359, 4077, 12231, 16987, 50961, 152883, 458649, 1375947, 2565037, 7695111, 23085333, 69255999, 207767997]

約数ペア:

[(1, 207767997), (3, 69255999), (9, 23085333), (27, 7695111), (81, 2565037), (151, 1375947), (453, 458649), (1359, 152883), (4077, 50961), (12231, 16987)]