21270207

素因数分解:

$3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{4423}}^1$

素因数の和:4662

約数の個数: 16

約数和(自身を含む): 32560640

約数和(自身を除く): 11290433

約数列:

[1, 3, 7, 21, 229, 687, 1603, 4423, 4809, 13269, 30961, 92883, 1012867, 3038601, 7090069, 21270207]

約数ペア:

[(1, 21270207), (3, 7090069), (7, 3038601), (21, 1012867), (229, 92883), (687, 30961), (1603, 13269), (4423, 4809)]