28639562

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{19861}}^1$

素因数の和:19973

約数の個数: 16

約数和(自身を含む): 49575552

約数和(自身を除く): 20935990

約数列:

[1, 2, 7, 14, 103, 206, 721, 1442, 19861, 39722, 139027, 278054, 2045683, 4091366, 14319781, 28639562]

約数ペア:

[(1, 28639562), (2, 14319781), (7, 4091366), (14, 2045683), (103, 278054), (206, 139027), (721, 39722), (1442, 19861)]