20471988

素因数分解:

$2^2\times 3^1\times {\mathrm{307}}^1\times {\mathrm{5557}}^1$

素因数の和:5871

約数の個数: 24

約数和(自身を含む): 47932192

約数和(自身を除く): 27460204

約数列:

[1, 2, 3, 4, 6, 12, 307, 614, 921, 1228, 1842, 3684, 5557, 11114, 16671, 22228, 33342, 66684, 1705999, 3411998, 5117997, 6823996, 10235994, 20471988]

約数ペア:

[(1, 20471988), (2, 10235994), (3, 6823996), (4, 5117997), (6, 3411998), (12, 1705999), (307, 66684), (614, 33342), (921, 22228), (1228, 16671), (1842, 11114), (3684, 5557)]