19805085

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{25889}}^1$

素因数の和:25917

約数の個数: 24

約数和(自身を含む): 36349560

約数和(自身を除く): 16544475

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 25889, 77667, 129445, 233001, 388335, 440113, 1165005, 1320339, 2200565, 3961017, 6601695, 19805085]

約数ペア:

[(1, 19805085), (3, 6601695), (5, 3961017), (9, 2200565), (15, 1320339), (17, 1165005), (45, 440113), (51, 388335), (85, 233001), (153, 129445), (255, 77667), (765, 25889)]