18415335

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:563

約数の個数: 32

約数和(自身を含む): 31430592

約数和(自身を除く): 13015257

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 257, 281, 771, 843, 1285, 1405, 3855, 4215, 4369, 4777, 13107, 14331, 21845, 23885, 65535, 71655, 72217, 216651, 361085, 1083255, 1227689, 3683067, 6138445, 18415335]

約数ペア:

[(1, 18415335), (3, 6138445), (5, 3683067), (15, 1227689), (17, 1083255), (51, 361085), (85, 216651), (255, 72217), (257, 71655), (281, 65535), (771, 23885), (843, 21845), (1285, 14331), (1405, 13107), (3855, 4777), (4215, 4369)]