21042154

素因数分解:

$2^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{22433}}^1$

素因数の和:22509

約数の個数: 16

約数和(自身を含む): 36612288

約数和(自身を除く): 15570134

約数列:

[1, 2, 7, 14, 67, 134, 469, 938, 22433, 44866, 157031, 314062, 1503011, 3006022, 10521077, 21042154]

約数ペア:

[(1, 21042154), (2, 10521077), (7, 3006022), (14, 1503011), (67, 314062), (134, 157031), (469, 44866), (938, 22433)]