20985954

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{317969}}^1$

素因数の和:317985

約数の個数: 16

約数和(自身を含む): 45787680

約数和(自身を除く): 24801726

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 317969, 635938, 953907, 1907814, 3497659, 6995318, 10492977, 20985954]

約数ペア:

[(1, 20985954), (2, 10492977), (3, 6995318), (6, 3497659), (11, 1907814), (22, 953907), (33, 635938), (66, 317969)]