28757214

素因数分解:

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

素因数の和:474

約数の個数: 48

約数和(自身を含む): 65847600

約数和(自身を除く): 37090386

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 389, 666, 778, 999, 1167, 1369, 1998, 2334, 2738, 3501, 4107, 7002, 8214, 10503, 12321, 14393, 21006, 24642, 28786, 36963, 43179, 73926, 86358, 129537, 259074, 388611, 532541, 777222, 1065082, 1597623, 3195246, 4792869, 9585738, 14378607, 28757214]

約数ペア:

[(1, 28757214), (2, 14378607), (3, 9585738), (6, 4792869), (9, 3195246), (18, 1597623), (27, 1065082), (37, 777222), (54, 532541), (74, 388611), (111, 259074), (222, 129537), (333, 86358), (389, 73926), (666, 43179), (778, 36963), (999, 28786), (1167, 24642), (1369, 21006), (1998, 14393), (2334, 12321), (2738, 10503), (3501, 8214), (4107, 7002)]