21406938

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{509689}}^1$

素因数の和:509701

約数の個数: 16

約数和(自身を含む): 48930240

約数和(自身を除く): 27523302

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 509689, 1019378, 1529067, 3058134, 3567823, 7135646, 10703469, 21406938]

約数ペア:

[(1, 21406938), (2, 10703469), (3, 7135646), (6, 3567823), (7, 3058134), (14, 1529067), (21, 1019378), (42, 509689)]