20091113

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{5209}}^1$

素因数の和:5264

約数の個数: 16

約数和(自身を含む): 25008000

約数和(自身を除く): 4916887

約数列:

[1, 7, 19, 29, 133, 203, 551, 3857, 5209, 36463, 98971, 151061, 692797, 1057427, 2870159, 20091113]

約数ペア:

[(1, 20091113), (7, 2870159), (19, 1057427), (29, 692797), (133, 151061), (203, 98971), (551, 36463), (3857, 5209)]