19918336

素因数分解:

$2^9\times {\mathrm{38903}}^1$

素因数の和:38921

約数の個数: 20

約数和(自身を含む): 39798792

約数和(自身を除く): 19880456

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 38903, 77806, 155612, 311224, 622448, 1244896, 2489792, 4979584, 9959168, 19918336]

約数ペア:

[(1, 19918336), (2, 9959168), (4, 4979584), (8, 2489792), (16, 1244896), (32, 622448), (64, 311224), (128, 155612), (256, 77806), (512, 38903)]