20664208

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{27479}}^1$

素因数の和:27534

約数の個数: 20

約数和(自身を含む): 40890240

約数和(自身を除く): 20226032

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 27479, 54958, 109916, 219832, 439664, 1291513, 2583026, 5166052, 10332104, 20664208]

約数ペア:

[(1, 20664208), (2, 10332104), (4, 5166052), (8, 2583026), (16, 1291513), (47, 439664), (94, 219832), (188, 109916), (376, 54958), (752, 27479)]