208021695

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{1981159}}^1$

素因数の和:1981174

約数の個数: 16

約数和(自身を含む): 380382720

約数和(自身を除く): 172361025

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 1981159, 5943477, 9905795, 13868113, 29717385, 41604339, 69340565, 208021695]

約数ペア:

[(1, 208021695), (3, 69340565), (5, 41604339), (7, 29717385), (15, 13868113), (21, 9905795), (35, 5943477), (105, 1981159)]