221239984

素因数分解:

$2^4\times 7^1\times {\mathrm{1123}}^1\times {\mathrm{1759}}^1$

素因数の和:2897

約数の個数: 40

約数和(自身を含む): 490603520

約数和(自身を除く): 269363536

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1123, 1759, 2246, 3518, 4492, 7036, 7861, 8984, 12313, 14072, 15722, 17968, 24626, 28144, 31444, 49252, 62888, 98504, 125776, 197008, 1975357, 3950714, 7901428, 13827499, 15802856, 27654998, 31605712, 55309996, 110619992, 221239984]

約数ペア:

[(1, 221239984), (2, 110619992), (4, 55309996), (7, 31605712), (8, 27654998), (14, 15802856), (16, 13827499), (28, 7901428), (56, 3950714), (112, 1975357), (1123, 197008), (1759, 125776), (2246, 98504), (3518, 62888), (4492, 49252), (7036, 31444), (7861, 28144), (8984, 24626), (12313, 17968), (14072, 15722)]