21906489

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{2297}}^1$

素因数の和:2345

約数の個数: 24

約数和(自身を含む): 33863328

約数和(自身を除く): 11956839

約数列:

[1, 3, 11, 17, 33, 51, 187, 289, 561, 867, 2297, 3179, 6891, 9537, 25267, 39049, 75801, 117147, 429539, 663833, 1288617, 1991499, 7302163, 21906489]

約数ペア:

[(1, 21906489), (3, 7302163), (11, 1991499), (17, 1288617), (33, 663833), (51, 429539), (187, 117147), (289, 75801), (561, 39049), (867, 25267), (2297, 9537), (3179, 6891)]