21367888

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{32573}}^1$

素因数の和:32622

約数の個数: 20

約数和(自身を含む): 42411348

約数和(自身を除く): 21043460

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 32573, 65146, 130292, 260584, 521168, 1335493, 2670986, 5341972, 10683944, 21367888]

約数ペア:

[(1, 21367888), (2, 10683944), (4, 5341972), (8, 2670986), (16, 1335493), (41, 521168), (82, 260584), (164, 130292), (328, 65146), (656, 32573)]