19980464

素因数分解:

$2^4\times 7^1\times {\mathrm{178397}}^1$

素因数の和:178412

約数の個数: 20

約数和(自身を含む): 44242704

約数和(自身を除く): 24262240

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178397, 356794, 713588, 1248779, 1427176, 2497558, 2854352, 4995116, 9990232, 19980464]

約数ペア:

[(1, 19980464), (2, 9990232), (4, 4995116), (7, 2854352), (8, 2497558), (14, 1427176), (16, 1248779), (28, 713588), (56, 356794), (112, 178397)]