18986535

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8273}}^1$

素因数の和:8304

約数の個数: 32

約数和(自身を含む): 35743680

約数和(自身を除く): 16757145

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8273, 24819, 41365, 74457, 124095, 140641, 223371, 372285, 421923, 703205, 1116855, 1265769, 2109615, 3797307, 6328845, 18986535]

約数ペア:

[(1, 18986535), (3, 6328845), (5, 3797307), (9, 2109615), (15, 1265769), (17, 1116855), (27, 703205), (45, 421923), (51, 372285), (85, 223371), (135, 140641), (153, 124095), (255, 74457), (459, 41365), (765, 24819), (2295, 8273)]