20284792

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{653}}^1$

素因数の和:1023

約数の個数: 32

約数和(自身を含む): 41672880

約数和(自身を除く): 21388088

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 353, 653, 706, 1306, 1412, 2612, 2824, 3883, 5224, 7183, 7766, 14366, 15532, 28732, 31064, 57464, 230509, 461018, 922036, 1844072, 2535599, 5071198, 10142396, 20284792]

約数ペア:

[(1, 20284792), (2, 10142396), (4, 5071198), (8, 2535599), (11, 1844072), (22, 922036), (44, 461018), (88, 230509), (353, 57464), (653, 31064), (706, 28732), (1306, 15532), (1412, 14366), (2612, 7766), (2824, 7183), (3883, 5224)]