18912808

素因数分解:

$2^3\times {\mathrm{23}}^2\times {\mathrm{41}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 38322900

約数和(自身を除く): 19410092

約数列:

[1, 2, 4, 8, 23, 41, 46, 82, 92, 109, 164, 184, 218, 328, 436, 529, 872, 943, 1058, 1886, 2116, 2507, 3772, 4232, 4469, 5014, 7544, 8938, 10028, 17876, 20056, 21689, 35752, 43378, 57661, 86756, 102787, 115322, 173512, 205574, 230644, 411148, 461288, 822296, 2364101, 4728202, 9456404, 18912808]

約数ペア:

[(1, 18912808), (2, 9456404), (4, 4728202), (8, 2364101), (23, 822296), (41, 461288), (46, 411148), (82, 230644), (92, 205574), (109, 173512), (164, 115322), (184, 102787), (218, 86756), (328, 57661), (436, 43378), (529, 35752), (872, 21689), (943, 20056), (1058, 17876), (1886, 10028), (2116, 8938), (2507, 7544), (3772, 5014), (4232, 4469)]