18702201

素因数分解:

$3^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{3889}}^1$

素因数の和:4128

約数の個数: 16

約数和(自身を含む): 28630400

約数和(自身を除く): 9928199

約数列:

[1, 3, 7, 21, 229, 687, 1603, 3889, 4809, 11667, 27223, 81669, 890581, 2671743, 6234067, 18702201]

約数ペア:

[(1, 18702201), (3, 6234067), (7, 2671743), (21, 890581), (229, 81669), (687, 27223), (1603, 11667), (3889, 4809)]