20688536

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{233}}^1\times {\mathrm{1009}}^1$

素因数の和:1259

約数の個数: 32

約数和(自身を含む): 42541200

約数和(自身を除く): 21852664

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 233, 466, 932, 1009, 1864, 2018, 2563, 4036, 5126, 8072, 10252, 11099, 20504, 22198, 44396, 88792, 235097, 470194, 940388, 1880776, 2586067, 5172134, 10344268, 20688536]

約数ペア:

[(1, 20688536), (2, 10344268), (4, 5172134), (8, 2586067), (11, 1880776), (22, 940388), (44, 470194), (88, 235097), (233, 88792), (466, 44396), (932, 22198), (1009, 20504), (1864, 11099), (2018, 10252), (2563, 8072), (4036, 5126)]