18456021

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 27382784

約数和(自身を除く): 8926763

約数列:

[1, 3, 9, 67, 127, 201, 241, 381, 603, 723, 1143, 2169, 8509, 16147, 25527, 30607, 48441, 76581, 91821, 145323, 275463, 2050669, 6152007, 18456021]

約数ペア:

[(1, 18456021), (3, 6152007), (9, 2050669), (67, 275463), (127, 145323), (201, 91821), (241, 76581), (381, 48441), (603, 30607), (723, 25527), (1143, 16147), (2169, 8509)]