1809157

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:708

約数の個数: 16

約数和(自身を含む): 2287872

約数和(自身を除く): 478715

約数列:

[1, 7, 17, 23, 119, 161, 391, 661, 2737, 4627, 11237, 15203, 78659, 106421, 258451, 1809157]

約数ペア:

[(1, 1809157), (7, 258451), (17, 106421), (23, 78659), (119, 15203), (161, 11237), (391, 4627), (661, 2737)]