21039054

素因数分解:

$2^1\times 3^1\times {\mathrm{421}}^1\times {\mathrm{8329}}^1$

素因数の和:8755

約数の個数: 16

約数和(自身を含む): 42183120

約数和(自身を除く): 21144066

約数列:

[1, 2, 3, 6, 421, 842, 1263, 2526, 8329, 16658, 24987, 49974, 3506509, 7013018, 10519527, 21039054]

約数ペア:

[(1, 21039054), (2, 10519527), (3, 7013018), (6, 3506509), (421, 49974), (842, 24987), (1263, 16658), (2526, 8329)]