20871561

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{1889}}^1$

素因数の和:2048

約数の個数: 16

約数和(自身を含む): 29030400

約数和(自身を除く): 8158839

約数列:

[1, 3, 29, 87, 127, 381, 1889, 3683, 5667, 11049, 54781, 164343, 239903, 719709, 6957187, 20871561]

約数ペア:

[(1, 20871561), (3, 6957187), (29, 719709), (87, 239903), (127, 164343), (381, 54781), (1889, 11049), (3683, 5667)]