20641478

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{72173}}^1$

素因数の和:72199

約数の個数: 16

約数和(自身を含む): 36375696

約数和(自身を除く): 15734218

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 72173, 144346, 793903, 938249, 1587806, 1876498, 10320739, 20641478]

約数ペア:

[(1, 20641478), (2, 10320739), (11, 1876498), (13, 1587806), (22, 938249), (26, 793903), (143, 144346), (286, 72173)]