21071259

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{7883}}^1$

素因数の和:7909

約数の個数: 24

約数和(自身を含む): 34437312

約数和(自身を除く): 13366053

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 243, 297, 891, 2673, 7883, 23649, 70947, 86713, 212841, 260139, 638523, 780417, 1915569, 2341251, 7023753, 21071259]

約数ペア:

[(1, 21071259), (3, 7023753), (9, 2341251), (11, 1915569), (27, 780417), (33, 638523), (81, 260139), (99, 212841), (243, 86713), (297, 70947), (891, 23649), (2673, 7883)]