19721968

素因数分解:

$2^4\times 7^1\times {\mathrm{176089}}^1$

素因数の和:176104

約数の個数: 20

約数和(自身を含む): 43670320

約数和(自身を除く): 23948352

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 176089, 352178, 704356, 1232623, 1408712, 2465246, 2817424, 4930492, 9860984, 19721968]

約数ペア:

[(1, 19721968), (2, 9860984), (4, 4930492), (7, 2817424), (8, 2465246), (14, 1408712), (16, 1232623), (28, 704356), (56, 352178), (112, 176089)]