18637695

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2707}}^1$

素因数の和:2741

約数の個数: 40

約数和(自身を含む): 35388144

約数和(自身を除く): 16750449

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1377, 2295, 2707, 6885, 8121, 13535, 24363, 40605, 46019, 73089, 121815, 138057, 219267, 230095, 365445, 414171, 690285, 1096335, 1242513, 2070855, 3727539, 6212565, 18637695]

約数ペア:

[(1, 18637695), (3, 6212565), (5, 3727539), (9, 2070855), (15, 1242513), (17, 1096335), (27, 690285), (45, 414171), (51, 365445), (81, 230095), (85, 219267), (135, 138057), (153, 121815), (255, 73089), (405, 46019), (459, 40605), (765, 24363), (1377, 13535), (2295, 8121), (2707, 6885)]