18678165

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 33784128

約数和(自身を除く): 15105963

約数列:

[1, 3, 5, 11, 15, 33, 41, 55, 121, 123, 165, 205, 251, 363, 451, 605, 615, 753, 1255, 1353, 1815, 2255, 2761, 3765, 4961, 6765, 8283, 10291, 13805, 14883, 24805, 30371, 30873, 41415, 51455, 74415, 91113, 113201, 151855, 154365, 339603, 455565, 566005, 1245211, 1698015, 3735633, 6226055, 18678165]

約数ペア:

[(1, 18678165), (3, 6226055), (5, 3735633), (11, 1698015), (15, 1245211), (33, 566005), (41, 455565), (55, 339603), (121, 154365), (123, 151855), (165, 113201), (205, 91113), (251, 74415), (363, 51455), (451, 41415), (605, 30873), (615, 30371), (753, 24805), (1255, 14883), (1353, 13805), (1815, 10291), (2255, 8283), (2761, 6765), (3765, 4961)]