19993986

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10007}}^1$

素因数の和:10055

約数の個数: 32

約数和(自身を含む): 45636480

約数和(自身を除く): 25642494

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10007, 20014, 30021, 60042, 90063, 180126, 270189, 370259, 540378, 740518, 1110777, 2221554, 3332331, 6664662, 9996993, 19993986]

約数ペア:

[(1, 19993986), (2, 9996993), (3, 6664662), (6, 3332331), (9, 2221554), (18, 1110777), (27, 740518), (37, 540378), (54, 370259), (74, 270189), (111, 180126), (222, 90063), (333, 60042), (666, 30021), (999, 20014), (1998, 10007)]