15857121

素因数分解:

$3^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{3833}}^1$

素因数の和:4040

約数の個数: 16

約数和(自身を含む): 24292224

約数和(自身を除く): 8435103

約数列:

[1, 3, 7, 21, 197, 591, 1379, 3833, 4137, 11499, 26831, 80493, 755101, 2265303, 5285707, 15857121]

約数ペア:

[(1, 15857121), (3, 5285707), (7, 2265303), (21, 755101), (197, 80493), (591, 26831), (1379, 11499), (3833, 4137)]