19005371217

素因数分解:

$3^2\times 7^1\times {\mathrm{301672559}}^1$

素因数の和:301672572

約数の個数: 12

約数和(自身を含む): 31373946240

約数和(自身を除く): 12368575023

約数列:

[1, 3, 7, 9, 21, 63, 301672559, 905017677, 2111707913, 2715053031, 6335123739, 19005371217]

約数ペア:

[(1, 19005371217), (3, 6335123739), (7, 2715053031), (9, 2111707913), (21, 905017677), (63, 301672559)]