21072219

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{32369}}^1$

素因数の和:32410

約数の個数: 16

約数和(自身を含む): 33146880

約数和(自身を除く): 12074661

約数列:

[1, 3, 7, 21, 31, 93, 217, 651, 32369, 97107, 226583, 679749, 1003439, 3010317, 7024073, 21072219]

約数ペア:

[(1, 21072219), (3, 7024073), (7, 3010317), (21, 1003439), (31, 679749), (93, 226583), (217, 97107), (651, 32369)]