21008274

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{500197}}^1$

素因数の和:500209

約数の個数: 16

約数和(自身を含む): 48019008

約数和(自身を除く): 27010734

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 500197, 1000394, 1500591, 3001182, 3501379, 7002758, 10504137, 21008274]

約数ペア:

[(1, 21008274), (2, 10504137), (3, 7002758), (6, 3501379), (7, 3001182), (14, 1500591), (21, 1000394), (42, 500197)]