221489961

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{619}}^1\times {\mathrm{1549}}^1$

素因数の和:2189

約数の個数: 32

約数和(自身を含む): 369024000

約数和(自身を除く): 147534039

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 619, 1549, 1857, 4333, 4647, 6809, 10843, 12999, 17039, 20427, 32529, 47663, 51117, 119273, 142989, 357819, 958831, 2876493, 6711817, 10547141, 20135451, 31641423, 73829987, 221489961]

約数ペア:

[(1, 221489961), (3, 73829987), (7, 31641423), (11, 20135451), (21, 10547141), (33, 6711817), (77, 2876493), (231, 958831), (619, 357819), (1549, 142989), (1857, 119273), (4333, 51117), (4647, 47663), (6809, 32529), (10843, 20427), (12999, 17039)]