20971533

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{2659}}^1$

素因数の和:2912

約数の個数: 16

約数和(自身を含む): 30643200

約数和(自身を除く): 9671667

約数列:

[1, 3, 11, 33, 239, 717, 2629, 2659, 7887, 7977, 29249, 87747, 635501, 1906503, 6990511, 20971533]

約数ペア:

[(1, 20971533), (3, 6990511), (11, 1906503), (33, 635501), (239, 87747), (717, 29249), (2629, 7977), (2659, 7887)]