206521175

素因数分解:

$5^2\times 7^1\times {\mathrm{1180121}}^1$

素因数の和:1180138

約数の個数: 12

約数和(自身を含む): 292670256

約数和(自身を除く): 86149081

約数列:

[1, 5, 7, 25, 35, 175, 1180121, 5900605, 8260847, 29503025, 41304235, 206521175]

約数ペア:

[(1, 206521175), (5, 41304235), (7, 29503025), (25, 8260847), (35, 5900605), (175, 1180121)]