19839388

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{69857}}^1$

素因数の和:69932

約数の個数: 12

約数和(自身を含む): 35208432

約数和(自身を除く): 15369044

約数列:

[1, 2, 4, 71, 142, 284, 69857, 139714, 279428, 4959847, 9919694, 19839388]

約数ペア:

[(1, 19839388), (2, 9919694), (4, 4959847), (71, 279428), (142, 139714), (284, 69857)]