19947536

素因数分解:

$2^4\times 7^1\times {\mathrm{178103}}^1$

素因数の和:178118

約数の個数: 20

約数和(自身を含む): 44169792

約数和(自身を除く): 24222256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 178103, 356206, 712412, 1246721, 1424824, 2493442, 2849648, 4986884, 9973768, 19947536]

約数ペア:

[(1, 19947536), (2, 9973768), (4, 4986884), (7, 2849648), (8, 2493442), (14, 1424824), (16, 1246721), (28, 712412), (56, 356206), (112, 178103)]