19503748

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{59}}^1\times {\mathrm{683}}^1$

素因数の和:768

約数の個数: 36

約数和(自身を含む): 38208240

約数和(自身を除く): 18704492

約数列:

[1, 2, 4, 11, 22, 44, 59, 118, 121, 236, 242, 484, 649, 683, 1298, 1366, 2596, 2732, 7139, 7513, 14278, 15026, 28556, 30052, 40297, 80594, 82643, 161188, 165286, 330572, 443267, 886534, 1773068, 4875937, 9751874, 19503748]

約数ペア:

[(1, 19503748), (2, 9751874), (4, 4875937), (11, 1773068), (22, 886534), (44, 443267), (59, 330572), (118, 165286), (121, 161188), (236, 82643), (242, 80594), (484, 40297), (649, 30052), (683, 28556), (1298, 15026), (1366, 14278), (2596, 7513), (2732, 7139)]