780506139

素因数分解:

$3^1\times 7^1\times {\mathrm{2351}}^1\times {\mathrm{15809}}^1$

素因数の和:18170

約数の個数: 16

約数和(自身を含む): 1189923840

約数和(自身を除く): 409417701

約数列:

[1, 3, 7, 21, 2351, 7053, 15809, 16457, 47427, 49371, 110663, 331989, 37166959, 111500877, 260168713, 780506139]

約数ペア:

[(1, 780506139), (3, 260168713), (7, 111500877), (21, 37166959), (2351, 331989), (7053, 110663), (15809, 49371), (16457, 47427)]