27999412

素因数分解:

$2^2\times 7^1\times {\mathrm{999979}}^1$

素因数の和:999990

約数の個数: 12

約数和(自身を含む): 55998880

約数和(自身を除く): 27999468

約数列:

[1, 2, 4, 7, 14, 28, 999979, 1999958, 3999916, 6999853, 13999706, 27999412]

約数ペア:

[(1, 27999412), (2, 13999706), (4, 6999853), (7, 3999916), (14, 1999958), (28, 999979)]