19944848

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16189}}^1$

素因数の和:16215

約数の個数: 40

約数和(自身を含む): 48181440

約数和(自身を除く): 28236592

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16189, 32378, 64756, 113323, 129512, 178079, 226646, 259024, 356158, 453292, 712316, 906584, 1246553, 1424632, 1813168, 2493106, 2849264, 4986212, 9972424, 19944848]

約数ペア:

[(1, 19944848), (2, 9972424), (4, 4986212), (7, 2849264), (8, 2493106), (11, 1813168), (14, 1424632), (16, 1246553), (22, 906584), (28, 712316), (44, 453292), (56, 356158), (77, 259024), (88, 226646), (112, 178079), (154, 129512), (176, 113323), (308, 64756), (616, 32378), (1232, 16189)]