20874986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{23143}}^1$

素因数の和:23197

約数の個数: 16

約数和(自身を含む): 34993728

約数和(自身を除く): 14118742

約数列:

[1, 2, 11, 22, 41, 82, 451, 902, 23143, 46286, 254573, 509146, 948863, 1897726, 10437493, 20874986]

約数ペア:

[(1, 20874986), (2, 10437493), (11, 1897726), (22, 948863), (41, 509146), (82, 254573), (451, 46286), (902, 23143)]