20387269

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{911}}^1$

素因数の和:1080

約数の個数: 16

約数和(自身を含む): 24514560

約数和(自身を除く): 4127291

約数列:

[1, 7, 23, 139, 161, 911, 973, 3197, 6377, 20953, 22379, 126629, 146671, 886403, 2912467, 20387269]

約数ペア:

[(1, 20387269), (7, 2912467), (23, 886403), (139, 146671), (161, 126629), (911, 22379), (973, 20953), (3197, 6377)]