21260217

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37897}}^1$

素因数の和:37928

約数の個数: 16

約数和(自身を含む): 32743872

約数和(自身を除く): 11483655

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37897, 113691, 416867, 644249, 1250601, 1932747, 7086739, 21260217]

約数ペア:

[(1, 21260217), (3, 7086739), (11, 1932747), (17, 1250601), (33, 644249), (51, 416867), (187, 113691), (561, 37897)]