21013601

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22571}}^1$

素因数の和:22604

約数の個数: 12

約数和(自身を含む): 25732080

約数和(自身を除く): 4718479

約数列:

[1, 7, 19, 49, 133, 931, 22571, 157997, 428849, 1105979, 3001943, 21013601]

約数ペア:

[(1, 21013601), (7, 3001943), (19, 1105979), (49, 428849), (133, 157997), (931, 22571)]