205317819

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3989}}^1$

素因数の和:4064

約数の個数: 48

約数和(自身を含む): 365164800

約数和(自身を除く): 159846981

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 129, 133, 171, 301, 387, 399, 817, 903, 1197, 2451, 2709, 3989, 5719, 7353, 11967, 17157, 27923, 35901, 51471, 75791, 83769, 171527, 227373, 251307, 514581, 530537, 682119, 1200689, 1543743, 1591611, 3259013, 3602067, 4774833, 9777039, 10806201, 22813091, 29331117, 68439273, 205317819]

約数ペア:

[(1, 205317819), (3, 68439273), (7, 29331117), (9, 22813091), (19, 10806201), (21, 9777039), (43, 4774833), (57, 3602067), (63, 3259013), (129, 1591611), (133, 1543743), (171, 1200689), (301, 682119), (387, 530537), (399, 514581), (817, 251307), (903, 227373), (1197, 171527), (2451, 83769), (2709, 75791), (3989, 51471), (5719, 35901), (7353, 27923), (11967, 17157)]