20990802

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499781}}^1$

素因数の和:499793

約数の個数: 16

約数和(自身を含む): 47979072

約数和(自身を除く): 26988270

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499781, 999562, 1499343, 2998686, 3498467, 6996934, 10495401, 20990802]

約数ペア:

[(1, 20990802), (2, 10495401), (3, 6996934), (6, 3498467), (7, 2998686), (14, 1499343), (21, 999562), (42, 499781)]