19290789

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7121}}^1$

素因数の和:7177

約数の個数: 24

約数和(自身を含む): 32590272

約数和(自身を除く): 13299483

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7121, 21363, 49847, 64089, 149541, 306203, 448623, 918609, 2143421, 2755827, 6430263, 19290789]

約数ペア:

[(1, 19290789), (3, 6430263), (7, 2755827), (9, 2143421), (21, 918609), (43, 448623), (63, 306203), (129, 149541), (301, 64089), (387, 49847), (903, 21363), (2709, 7121)]