19866285

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{25969}}^1$

素因数の和:25997

約数の個数: 24

約数和(自身を含む): 36461880

約数和(自身を除く): 16595595

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 25969, 77907, 129845, 233721, 389535, 441473, 1168605, 1324419, 2207365, 3973257, 6622095, 19866285]

約数ペア:

[(1, 19866285), (3, 6622095), (5, 3973257), (9, 2207365), (15, 1324419), (17, 1168605), (45, 441473), (51, 389535), (85, 233721), (153, 129845), (255, 77907), (765, 25969)]