20974162

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{3989}}^1$

素因数の和:4241

約数の個数: 16

約数和(自身を含む): 34473600

約数和(自身を除く): 13499438

約数列:

[1, 2, 11, 22, 239, 478, 2629, 3989, 5258, 7978, 43879, 87758, 953371, 1906742, 10487081, 20974162]

約数ペア:

[(1, 20974162), (2, 10487081), (11, 1906742), (22, 953371), (239, 87758), (478, 43879), (2629, 7978), (3989, 5258)]