19806938

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{4447}}^1$

素因数の和:4597

約数の個数: 16

約数和(自身を含む): 31705344

約数和(自身を除く): 11898406

約数列:

[1, 2, 17, 34, 131, 262, 2227, 4447, 4454, 8894, 75599, 151198, 582557, 1165114, 9903469, 19806938]

約数ペア:

[(1, 19806938), (2, 9903469), (17, 1165114), (34, 582557), (131, 151198), (262, 75599), (2227, 8894), (4447, 4454)]