393966

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^1\times {\mathrm{509}}^1$

素因数の和:560

約数の個数: 24

約数和(自身を含む): 875160

約数和(自身を除く): 481194

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 509, 774, 1018, 1527, 3054, 4581, 9162, 21887, 43774, 65661, 131322, 196983, 393966]

約数ペア:

[(1, 393966), (2, 196983), (3, 131322), (6, 65661), (9, 43774), (18, 21887), (43, 9162), (86, 4581), (129, 3054), (258, 1527), (387, 1018), (509, 774)]