19887728

素因数分解:

$2^4\times 7^2\times {\mathrm{25367}}^1$

素因数の和:25389

約数の個数: 30

約数和(自身を含む): 44825256

約数和(自身を除く): 24937528

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 25367, 50734, 101468, 177569, 202936, 355138, 405872, 710276, 1242983, 1420552, 2485966, 2841104, 4971932, 9943864, 19887728]

約数ペア:

[(1, 19887728), (2, 9943864), (4, 4971932), (7, 2841104), (8, 2485966), (14, 1420552), (16, 1242983), (28, 710276), (49, 405872), (56, 355138), (98, 202936), (112, 177569), (196, 101468), (392, 50734), (784, 25367)]