19511107

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{479}}^1$

素因数の和:543

約数の個数: 24

約数和(自身を含む): 25482240

約数和(自身を除く): 5971133

約数列:

[1, 7, 11, 23, 77, 161, 253, 479, 529, 1771, 3353, 3703, 5269, 5819, 11017, 36883, 40733, 77119, 121187, 253391, 848309, 1773737, 2787301, 19511107]

約数ペア:

[(1, 19511107), (7, 2787301), (11, 1773737), (23, 848309), (77, 253391), (161, 121187), (253, 77119), (479, 40733), (529, 36883), (1771, 11017), (3353, 5819), (3703, 5269)]