19963664

素因数分解:

$2^4\times 7^1\times {\mathrm{178247}}^1$

素因数の和:178262

約数の個数: 20

約数和(自身を含む): 44205504

約数和(自身を除く): 24241840

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178247, 356494, 712988, 1247729, 1425976, 2495458, 2851952, 4990916, 9981832, 19963664]

約数ペア:

[(1, 19963664), (2, 9981832), (4, 4990916), (7, 2851952), (8, 2495458), (14, 1425976), (16, 1247729), (28, 712988), (56, 356494), (112, 178247)]