21010703

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:191

約数の個数: 24

約数和(自身を含む): 25753728

約数和(自身を除く): 4743025

約数列:

[1, 7, 29, 43, 83, 203, 301, 581, 841, 1247, 2407, 3569, 5887, 8729, 16849, 24983, 36163, 69803, 103501, 253141, 488621, 724507, 3001529, 21010703]

約数ペア:

[(1, 21010703), (7, 3001529), (29, 724507), (43, 488621), (83, 253141), (203, 103501), (301, 69803), (581, 36163), (841, 24983), (1247, 16849), (2407, 8729), (3569, 5887)]