21180586

素因数分解:

$2^1\times 7^1\times {\mathrm{1229}}^1\times {\mathrm{1231}}^1$

素因数の和:2469

約数の個数: 16

約数和(自身を含む): 36368640

約数和(自身を除く): 15188054

約数列:

[1, 2, 7, 14, 1229, 1231, 2458, 2462, 8603, 8617, 17206, 17234, 1512899, 3025798, 10590293, 21180586]

約数ペア:

[(1, 21180586), (2, 10590293), (7, 3025798), (14, 1512899), (1229, 17234), (1231, 17206), (2458, 8617), (2462, 8603)]