20520577

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11587}}^1$

素因数の和:11628

約数の個数: 16

約数和(自身を含む): 26698752

約数和(自身を除く): 6178175

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11587, 81109, 127457, 266501, 892199, 1865507, 2931511, 20520577]

約数ペア:

[(1, 20520577), (7, 2931511), (11, 1865507), (23, 892199), (77, 266501), (161, 127457), (253, 81109), (1771, 11587)]