20686468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{11467}}^1$

素因数の和:11523

約数の個数: 24

約数和(自身を含む): 40459104

約数和(自身を除く): 19772636

約数列:

[1, 2, 4, 11, 22, 41, 44, 82, 164, 451, 902, 1804, 11467, 22934, 45868, 126137, 252274, 470147, 504548, 940294, 1880588, 5171617, 10343234, 20686468]

約数ペア:

[(1, 20686468), (2, 10343234), (4, 5171617), (11, 1880588), (22, 940294), (41, 504548), (44, 470147), (82, 252274), (164, 126137), (451, 45868), (902, 22934), (1804, 11467)]