18520634

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^2\times {\mathrm{167}}^1$

素因数の和:322

約数の個数: 24

約数和(自身を含む): 30923424

約数和(自身を除く): 12402790

約数列:

[1, 2, 11, 22, 71, 142, 167, 334, 781, 1562, 1837, 3674, 5041, 10082, 11857, 23714, 55451, 110902, 130427, 260854, 841847, 1683694, 9260317, 18520634]

約数ペア:

[(1, 18520634), (2, 9260317), (11, 1683694), (22, 841847), (71, 260854), (142, 130427), (167, 110902), (334, 55451), (781, 23714), (1562, 11857), (1837, 10082), (3674, 5041)]