51565904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{247913}}^1$

素因数の和:247934

約数の個数: 20

約数和(自身を含む): 107594676

約数和(自身を除く): 56028772

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 247913, 495826, 991652, 1983304, 3222869, 3966608, 6445738, 12891476, 25782952, 51565904]

約数ペア:

[(1, 51565904), (2, 25782952), (4, 12891476), (8, 6445738), (13, 3966608), (16, 3222869), (26, 1983304), (52, 991652), (104, 495826), (208, 247913)]