208989417

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{937}}^1$

素因数の和:1022

約数の個数: 64

約数和(自身を含む): 369797120

約数和(自身を除く): 160807703

約数列:

[1, 3, 7, 13, 19, 21, 39, 43, 57, 91, 129, 133, 247, 273, 301, 399, 559, 741, 817, 903, 937, 1677, 1729, 2451, 2811, 3913, 5187, 5719, 6559, 10621, 11739, 12181, 17157, 17803, 19677, 31863, 36543, 40291, 53409, 74347, 85267, 120873, 124621, 223041, 231439, 255801, 282037, 373863, 523783, 694317, 765529, 846111, 1571349, 1620073, 2296587, 3666481, 4860219, 5358703, 9951877, 10999443, 16076109, 29855631, 69663139, 208989417]

約数ペア:

[(1, 208989417), (3, 69663139), (7, 29855631), (13, 16076109), (19, 10999443), (21, 9951877), (39, 5358703), (43, 4860219), (57, 3666481), (91, 2296587), (129, 1620073), (133, 1571349), (247, 846111), (273, 765529), (301, 694317), (399, 523783), (559, 373863), (741, 282037), (817, 255801), (903, 231439), (937, 223041), (1677, 124621), (1729, 120873), (2451, 85267), (2811, 74347), (3913, 53409), (5187, 40291), (5719, 36543), (6559, 31863), (10621, 19677), (11739, 17803), (12181, 17157)]