21556437

素因数分解:

$3^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{2143}}^1$

素因数の和:2632

約数の個数: 16

約数和(自身を含む): 32931840

約数和(自身を除く): 11375403

約数列:

[1, 3, 7, 21, 479, 1437, 2143, 3353, 6429, 10059, 15001, 45003, 1026497, 3079491, 7185479, 21556437]

約数ペア:

[(1, 21556437), (3, 7185479), (7, 3079491), (21, 1026497), (479, 45003), (1437, 15001), (2143, 10059), (3353, 6429)]