19839956

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{69859}}^1$

素因数の和:69934

約数の個数: 12

約数和(自身を含む): 35209440

約数和(自身を除く): 15369484

約数列:

[1, 2, 4, 71, 142, 284, 69859, 139718, 279436, 4959989, 9919978, 19839956]

約数ペア:

[(1, 19839956), (2, 9919978), (4, 4959989), (71, 279436), (142, 139718), (284, 69859)]