21071352

素因数分解:

$2^3\times 3^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{389}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 55130400

約数和(自身を除く): 34059048

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 37, 61, 74, 111, 122, 148, 183, 222, 244, 296, 366, 389, 444, 488, 732, 778, 888, 1167, 1464, 1556, 2257, 2334, 3112, 4514, 4668, 6771, 9028, 9336, 13542, 14393, 18056, 23729, 27084, 28786, 43179, 47458, 54168, 57572, 71187, 86358, 94916, 115144, 142374, 172716, 189832, 284748, 345432, 569496, 877973, 1755946, 2633919, 3511892, 5267838, 7023784, 10535676, 21071352]

約数ペア:

[(1, 21071352), (2, 10535676), (3, 7023784), (4, 5267838), (6, 3511892), (8, 2633919), (12, 1755946), (24, 877973), (37, 569496), (61, 345432), (74, 284748), (111, 189832), (122, 172716), (148, 142374), (183, 115144), (222, 94916), (244, 86358), (296, 71187), (366, 57572), (389, 54168), (444, 47458), (488, 43179), (732, 28786), (778, 27084), (888, 23729), (1167, 18056), (1464, 14393), (1556, 13542), (2257, 9336), (2334, 9028), (3112, 6771), (4514, 4668)]