21005103

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{14929}}^1$

素因数の和:15006

約数の個数: 16

約数和(自身を含む): 32487680

約数和(自身を除く): 11482577

約数列:

[1, 3, 7, 21, 67, 201, 469, 1407, 14929, 44787, 104503, 313509, 1000243, 3000729, 7001701, 21005103]

約数ペア:

[(1, 21005103), (3, 7001701), (7, 3000729), (21, 1000243), (67, 313509), (201, 104503), (469, 44787), (1407, 14929)]