21549891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{5779}}^1$

素因数の和:5906

約数の個数: 16

約数和(自身を含む): 31628160

約数和(自身を除く): 10078269

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 5779, 17337, 63569, 190707, 653027, 1959081, 7183297, 21549891]

約数ペア:

[(1, 21549891), (3, 7183297), (11, 1959081), (33, 653027), (113, 190707), (339, 63569), (1243, 17337), (3729, 5779)]