187808229

素因数分解:

$3^2\times 7^2\times {\mathrm{425869}}^1$

素因数の和:425889

約数の個数: 18

約数和(自身を含む): 315569670

約数和(自身を除く): 127761441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 425869, 1277607, 2981083, 3832821, 8943249, 20867581, 26829747, 62602743, 187808229]

約数ペア:

[(1, 187808229), (3, 62602743), (7, 26829747), (9, 20867581), (21, 8943249), (49, 3832821), (63, 2981083), (147, 1277607), (441, 425869)]