18157904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{277}}^1$

素因数の和:543

約数の個数: 40

約数和(自身を含む): 37540008

約数和(自身を除く): 19382104

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 241, 272, 277, 482, 554, 964, 1108, 1928, 2216, 3856, 4097, 4432, 4709, 8194, 9418, 16388, 18836, 32776, 37672, 65552, 66757, 75344, 133514, 267028, 534056, 1068112, 1134869, 2269738, 4539476, 9078952, 18157904]

約数ペア:

[(1, 18157904), (2, 9078952), (4, 4539476), (8, 2269738), (16, 1134869), (17, 1068112), (34, 534056), (68, 267028), (136, 133514), (241, 75344), (272, 66757), (277, 65552), (482, 37672), (554, 32776), (964, 18836), (1108, 16388), (1928, 9418), (2216, 8194), (3856, 4709), (4097, 4432)]