21151984

素因数分解:

$2^4\times 7^1\times {\mathrm{188857}}^1$

素因数の和:188872

約数の個数: 20

約数和(自身を含む): 46836784

約数和(自身を除く): 25684800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 188857, 377714, 755428, 1321999, 1510856, 2643998, 3021712, 5287996, 10575992, 21151984]

約数ペア:

[(1, 21151984), (2, 10575992), (4, 5287996), (7, 3021712), (8, 2643998), (14, 1510856), (16, 1321999), (28, 755428), (56, 377714), (112, 188857)]