21765723

素因数分解:

$3^1\times 7^1\times {\mathrm{863}}^1\times {\mathrm{1201}}^1$

素因数の和:2074

約数の個数: 16

約数和(自身を含む): 33232896

約数和(自身を除く): 11467173

約数列:

[1, 3, 7, 21, 863, 1201, 2589, 3603, 6041, 8407, 18123, 25221, 1036463, 3109389, 7255241, 21765723]

約数ペア:

[(1, 21765723), (3, 7255241), (7, 3109389), (21, 1036463), (863, 25221), (1201, 18123), (2589, 8407), (3603, 6041)]