21269478

素因数分解:

$2^1\times 3^1\times {\mathrm{647}}^1\times {\mathrm{5479}}^1$

素因数の和:6131

約数の個数: 16

約数和(自身を含む): 42612480

約数和(自身を除く): 21343002

約数列:

[1, 2, 3, 6, 647, 1294, 1941, 3882, 5479, 10958, 16437, 32874, 3544913, 7089826, 10634739, 21269478]

約数ペア:

[(1, 21269478), (2, 10634739), (3, 7089826), (6, 3544913), (647, 32874), (1294, 16437), (1941, 10958), (3882, 5479)]