21349167

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6823}}^1$

素因数の和:6982

約数の個数: 16

約数和(自身を含む): 32755200

約数和(自身を除く): 11406033

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6823, 20469, 47761, 143283, 1016627, 3049881, 7116389, 21349167]

約数ペア:

[(1, 21349167), (3, 7116389), (7, 3049881), (21, 1016627), (149, 143283), (447, 47761), (1043, 20469), (3129, 6823)]