20972666

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73331}}^1$

素因数の和:73357

約数の個数: 16

約数和(自身を含む): 36959328

約数和(自身を除く): 15986662

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 73331, 146662, 806641, 953303, 1613282, 1906606, 10486333, 20972666]

約数ペア:

[(1, 20972666), (2, 10486333), (11, 1906606), (13, 1613282), (22, 953303), (26, 806641), (143, 146662), (286, 73331)]