15661566004

素因数分解:

$2^2\times 7^2\times {\mathrm{79905949}}^1$

素因数の和:79905967

約数の個数: 18

約数和(自身を含む): 31882474050

約数和(自身を除く): 16220908046

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 79905949, 159811898, 319623796, 559341643, 1118683286, 2237366572, 3915391501, 7830783002, 15661566004]

約数ペア:

[(1, 15661566004), (2, 7830783002), (4, 3915391501), (7, 2237366572), (14, 1118683286), (28, 559341643), (49, 319623796), (98, 159811898), (196, 79905949)]