18907679

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{883}}^1$

素因数の和:939

約数の個数: 24

約数和(自身を含む): 24186240

約数和(自身を除く): 5278561

約数列:

[1, 7, 19, 23, 49, 133, 161, 437, 883, 931, 1127, 3059, 6181, 16777, 20309, 21413, 43267, 117439, 142163, 385871, 822073, 995141, 2701097, 18907679]

約数ペア:

[(1, 18907679), (7, 2701097), (19, 995141), (23, 822073), (49, 385871), (133, 142163), (161, 117439), (437, 43267), (883, 21413), (931, 20309), (1127, 16777), (3059, 6181)]