209719293

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{15877}}^1$

素因数の和:15941

約数の個数: 32

約数和(自身を含む): 347537664

約数和(自身を除く): 137818371

約数列:

[1, 3, 7, 17, 21, 37, 51, 111, 119, 259, 357, 629, 777, 1887, 4403, 13209, 15877, 47631, 111139, 269909, 333417, 587449, 809727, 1762347, 1889363, 4112143, 5668089, 9986633, 12336429, 29959899, 69906431, 209719293]

約数ペア:

[(1, 209719293), (3, 69906431), (7, 29959899), (17, 12336429), (21, 9986633), (37, 5668089), (51, 4112143), (111, 1889363), (119, 1762347), (259, 809727), (357, 587449), (629, 333417), (777, 269909), (1887, 111139), (4403, 47631), (13209, 15877)]