19285168

素因数分解:

$2^4\times 7^1\times {\mathrm{409}}^1\times {\mathrm{421}}^1$

素因数の和:845

約数の個数: 40

約数和(自身を含む): 42908960

約数和(自身を除く): 23623792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 409, 421, 818, 842, 1636, 1684, 2863, 2947, 3272, 3368, 5726, 5894, 6544, 6736, 11452, 11788, 22904, 23576, 45808, 47152, 172189, 344378, 688756, 1205323, 1377512, 2410646, 2755024, 4821292, 9642584, 19285168]

約数ペア:

[(1, 19285168), (2, 9642584), (4, 4821292), (7, 2755024), (8, 2410646), (14, 1377512), (16, 1205323), (28, 688756), (56, 344378), (112, 172189), (409, 47152), (421, 45808), (818, 23576), (842, 22904), (1636, 11788), (1684, 11452), (2863, 6736), (2947, 6544), (3272, 5894), (3368, 5726)]