21291084

素因数分解:

$2^2\times 3^2\times {\mathrm{157}}^1\times {\mathrm{3767}}^1$

素因数の和:3934

約数の個数: 36

約数和(自身を含む): 54176304

約数和(自身を除く): 32885220

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 157, 314, 471, 628, 942, 1413, 1884, 2826, 3767, 5652, 7534, 11301, 15068, 22602, 33903, 45204, 67806, 135612, 591419, 1182838, 1774257, 2365676, 3548514, 5322771, 7097028, 10645542, 21291084]

約数ペア:

[(1, 21291084), (2, 10645542), (3, 7097028), (4, 5322771), (6, 3548514), (9, 2365676), (12, 1774257), (18, 1182838), (36, 591419), (157, 135612), (314, 67806), (471, 45204), (628, 33903), (942, 22602), (1413, 15068), (1884, 11301), (2826, 7534), (3767, 5652)]