20988863

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9283}}^1$

素因数の和:9326

約数の個数: 16

約数和(自身を含む): 26737920

約数和(自身を除く): 5749057

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 9283, 64981, 157811, 176377, 1104677, 1234639, 2998409, 20988863]

約数ペア:

[(1, 20988863), (7, 2998409), (17, 1234639), (19, 1104677), (119, 176377), (133, 157811), (323, 64981), (2261, 9283)]