21315844

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44041}}^1$

素因数の和:44067

約数の個数: 18

約数和(自身を含む): 41003102

約数和(自身を除く): 19687258

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44041, 88082, 176164, 484451, 968902, 1937804, 5328961, 10657922, 21315844]

約数ペア:

[(1, 21315844), (2, 10657922), (4, 5328961), (11, 1937804), (22, 968902), (44, 484451), (121, 176164), (242, 88082), (484, 44041)]