21911883

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{54917}}^1$

素因数の和:54946

約数の個数: 16

約数和(自身を含む): 35147520

約数和(自身を除く): 13235637

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 54917, 164751, 384419, 1043423, 1153257, 3130269, 7303961, 21911883]

約数ペア:

[(1, 21911883), (3, 7303961), (7, 3130269), (19, 1153257), (21, 1043423), (57, 384419), (133, 164751), (399, 54917)]