19933578

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{563}}^1$

素因数の和:859

約数の個数: 48

約数和(自身を含む): 49622976

約数和(自身を除く): 29689398

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 281, 562, 563, 843, 1126, 1686, 1689, 1967, 2529, 3378, 3934, 3941, 5058, 5067, 5901, 7882, 10134, 11802, 11823, 17703, 23646, 35406, 35469, 70938, 158203, 316406, 474609, 949218, 1107421, 1423827, 2214842, 2847654, 3322263, 6644526, 9966789, 19933578]

約数ペア:

[(1, 19933578), (2, 9966789), (3, 6644526), (6, 3322263), (7, 2847654), (9, 2214842), (14, 1423827), (18, 1107421), (21, 949218), (42, 474609), (63, 316406), (126, 158203), (281, 70938), (562, 35469), (563, 35406), (843, 23646), (1126, 17703), (1686, 11823), (1689, 11802), (1967, 10134), (2529, 7882), (3378, 5901), (3934, 5067), (3941, 5058)]