21427701

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{1097}}^1$

素因数の和:1500

約数の個数: 16

約数和(自身を含む): 30357504

約数和(自身を除く): 8929803

約数列:

[1, 3, 17, 51, 383, 1097, 1149, 3291, 6511, 18649, 19533, 55947, 420151, 1260453, 7142567, 21427701]

約数ペア:

[(1, 21427701), (3, 7142567), (17, 1260453), (51, 420151), (383, 55947), (1097, 19533), (1149, 18649), (3291, 6511)]