18642795

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{2521}}^1$

素因数の和:2575

約数の個数: 32

約数和(自身を含む): 32685120

約数和(自身を除く): 14042325

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 2521, 7395, 7563, 12605, 37815, 42857, 73109, 128571, 214285, 219327, 365545, 642855, 1096635, 1242853, 3728559, 6214265, 18642795]

約数ペア:

[(1, 18642795), (3, 6214265), (5, 3728559), (15, 1242853), (17, 1096635), (29, 642855), (51, 365545), (85, 219327), (87, 214285), (145, 128571), (255, 73109), (435, 42857), (493, 37815), (1479, 12605), (2465, 7563), (2521, 7395)]