21278676

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12757}}^1$

素因数の和:12903

約数の個数: 24

約数和(自身を含む): 50011360

約数和(自身を除く): 28732684

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12757, 25514, 38271, 51028, 76542, 153084, 1773223, 3546446, 5319669, 7092892, 10639338, 21278676]

約数ペア:

[(1, 21278676), (2, 10639338), (3, 7092892), (4, 5319669), (6, 3546446), (12, 1773223), (139, 153084), (278, 76542), (417, 51028), (556, 38271), (834, 25514), (1668, 12757)]