19990544

素因数分解:

$2^4\times 7^1\times {\mathrm{178487}}^1$

素因数の和:178502

約数の個数: 20

約数和(自身を含む): 44265024

約数和(自身を除く): 24274480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178487, 356974, 713948, 1249409, 1427896, 2498818, 2855792, 4997636, 9995272, 19990544]

約数ペア:

[(1, 19990544), (2, 9995272), (4, 4997636), (7, 2855792), (8, 2498818), (14, 1427896), (16, 1249409), (28, 713948), (56, 356974), (112, 178487)]