19649889

素因数分解:

$3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 34504704

約数和(自身を除く): 14854815

約数列:

[1, 3, 7, 9, 21, 23, 63, 69, 71, 161, 191, 207, 213, 483, 497, 573, 639, 1337, 1449, 1491, 1633, 1719, 4011, 4393, 4473, 4899, 11431, 12033, 13179, 13561, 14697, 30751, 34293, 39537, 40683, 92253, 94927, 102879, 122049, 276759, 284781, 311903, 854343, 935709, 2183321, 2807127, 6549963, 19649889]

約数ペア:

[(1, 19649889), (3, 6549963), (7, 2807127), (9, 2183321), (21, 935709), (23, 854343), (63, 311903), (69, 284781), (71, 276759), (161, 122049), (191, 102879), (207, 94927), (213, 92253), (483, 40683), (497, 39537), (573, 34293), (639, 30751), (1337, 14697), (1449, 13561), (1491, 13179), (1633, 12033), (1719, 11431), (4011, 4899), (4393, 4473)]