20299986

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{2207}}^1$

素因数の和:2295

約数の個数: 48

約数和(自身を含む): 50978304

約数和(自身を除く): 30678318

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 73, 126, 146, 219, 438, 511, 657, 1022, 1314, 1533, 2207, 3066, 4414, 4599, 6621, 9198, 13242, 15449, 19863, 30898, 39726, 46347, 92694, 139041, 161111, 278082, 322222, 483333, 966666, 1127777, 1449999, 2255554, 2899998, 3383331, 6766662, 10149993, 20299986]

約数ペア:

[(1, 20299986), (2, 10149993), (3, 6766662), (6, 3383331), (7, 2899998), (9, 2255554), (14, 1449999), (18, 1127777), (21, 966666), (42, 483333), (63, 322222), (73, 278082), (126, 161111), (146, 139041), (219, 92694), (438, 46347), (511, 39726), (657, 30898), (1022, 19863), (1314, 15449), (1533, 13242), (2207, 9198), (3066, 6621), (4414, 4599)]