20984008

素因数分解:

$2^3\times {\mathrm{1181}}^1\times {\mathrm{2221}}^1$

素因数の和:3408

約数の個数: 16

約数和(自身を含む): 39396060

約数和(自身を除く): 18412052

約数列:

[1, 2, 4, 8, 1181, 2221, 2362, 4442, 4724, 8884, 9448, 17768, 2623001, 5246002, 10492004, 20984008]

約数ペア:

[(1, 20984008), (2, 10492004), (4, 5246002), (8, 2623001), (1181, 17768), (2221, 9448), (2362, 8884), (4442, 4724)]