21991998

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{593}}^1\times {\mathrm{883}}^1$

素因数の和:1488

約数の個数: 32

約数和(自身を含む): 50409216

約数和(自身を除く): 28417218

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 593, 883, 1186, 1766, 1779, 2649, 3558, 4151, 5298, 6181, 8302, 12362, 12453, 18543, 24906, 37086, 523619, 1047238, 1570857, 3141714, 3665333, 7330666, 10995999, 21991998]

約数ペア:

[(1, 21991998), (2, 10995999), (3, 7330666), (6, 3665333), (7, 3141714), (14, 1570857), (21, 1047238), (42, 523619), (593, 37086), (883, 24906), (1186, 18543), (1766, 12453), (1779, 12362), (2649, 8302), (3558, 6181), (4151, 5298)]