20971203

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{181}}^1\times {\mathrm{3511}}^1$

素因数の和:3706

約数の個数: 16

約数和(自身を含む): 30680832

約数和(自身を除く): 9709629

約数列:

[1, 3, 11, 33, 181, 543, 1991, 3511, 5973, 10533, 38621, 115863, 635491, 1906473, 6990401, 20971203]

約数ペア:

[(1, 20971203), (3, 6990401), (11, 1906473), (33, 635491), (181, 115863), (543, 38621), (1991, 10533), (3511, 5973)]