21051129

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21997}}^1$

素因数の和:22040

約数の個数: 16

約数和(自身を含む): 31677120

約数和(自身を除く): 10625991

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 21997, 65991, 241967, 637913, 725901, 1913739, 7017043, 21051129]

約数ペア:

[(1, 21051129), (3, 7017043), (11, 1913739), (29, 725901), (33, 637913), (87, 241967), (319, 65991), (957, 21997)]