222720729

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{137737}}^1$

素因数の和:137765

約数の個数: 24

約数和(自身を含む): 376851168

約数和(自身を除く): 154130439

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 137737, 413211, 964159, 1515107, 2892477, 4545321, 6749113, 10605749, 20247339, 31817247, 74240243, 222720729]

約数ペア:

[(1, 222720729), (3, 74240243), (7, 31817247), (11, 20247339), (21, 10605749), (33, 6749113), (49, 4545321), (77, 2892477), (147, 1515107), (231, 964159), (539, 413211), (1617, 137737)]