19858888

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6691}}^1$

素因数の和:6757

約数の個数: 32

約数和(自身を含む): 43364160

約数和(自身を除く): 23505272

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 106, 212, 371, 424, 742, 1484, 2968, 6691, 13382, 26764, 46837, 53528, 93674, 187348, 354623, 374696, 709246, 1418492, 2482361, 2836984, 4964722, 9929444, 19858888]

約数ペア:

[(1, 19858888), (2, 9929444), (4, 4964722), (7, 2836984), (8, 2482361), (14, 1418492), (28, 709246), (53, 374696), (56, 354623), (106, 187348), (212, 93674), (371, 53528), (424, 46837), (742, 26764), (1484, 13382), (2968, 6691)]