19885418

素因数分解:

$2^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{643}}^1$

素因数の和:746

約数の個数: 24

約数和(自身を含む): 34884192

約数和(自身を除く): 14998774

約数列:

[1, 2, 7, 14, 47, 94, 329, 643, 658, 1286, 2209, 4418, 4501, 9002, 15463, 30221, 30926, 60442, 211547, 423094, 1420387, 2840774, 9942709, 19885418]

約数ペア:

[(1, 19885418), (2, 9942709), (7, 2840774), (14, 1420387), (47, 423094), (94, 211547), (329, 60442), (643, 30926), (658, 30221), (1286, 15463), (2209, 9002), (4418, 4501)]