208985217

素因数分解:

$3^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{75967}}^1$

素因数の和:76108

約数の個数: 16

約数和(自身を含む): 320888832

約数和(自身を除く): 111903615

約数列:

[1, 3, 7, 21, 131, 393, 917, 2751, 75967, 227901, 531769, 1595307, 9951677, 29855031, 69661739, 208985217]

約数ペア:

[(1, 208985217), (3, 69661739), (7, 29855031), (21, 9951677), (131, 1595307), (393, 531769), (917, 227901), (2751, 75967)]