21655278

素因数分解:

$2^1\times 3^2\times {\mathrm{127}}^1\times {\mathrm{9473}}^1$

素因数の和:9608

約数の個数: 24

約数和(自身を含む): 47294208

約数和(自身を除く): 25638930

約数列:

[1, 2, 3, 6, 9, 18, 127, 254, 381, 762, 1143, 2286, 9473, 18946, 28419, 56838, 85257, 170514, 1203071, 2406142, 3609213, 7218426, 10827639, 21655278]

約数ペア:

[(1, 21655278), (2, 10827639), (3, 7218426), (6, 3609213), (9, 2406142), (18, 1203071), (127, 170514), (254, 85257), (381, 56838), (762, 28419), (1143, 18946), (2286, 9473)]