217712831

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{349}}^1\times {\mathrm{439}}^1$

素因数の和:831

約数の個数: 24

約数和(自身を含む): 263340000

約数和(自身を除く): 45627169

約数列:

[1, 7, 29, 49, 203, 349, 439, 1421, 2443, 3073, 10121, 12731, 17101, 21511, 70847, 89117, 153211, 495929, 623819, 1072477, 4443119, 7507339, 31101833, 217712831]

約数ペア:

[(1, 217712831), (7, 31101833), (29, 7507339), (49, 4443119), (203, 1072477), (349, 623819), (439, 495929), (1421, 153211), (2443, 89117), (3073, 70847), (10121, 21511), (12731, 17101)]