39801748

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{20021}}^1$

素因数の和:20103

約数の個数: 24

約数和(自身を含む): 80728704

約数和(自身を除く): 40926956

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 20021, 40042, 80084, 140147, 280294, 560588, 1421491, 2842982, 5685964, 9950437, 19900874, 39801748]

約数ペア:

[(1, 39801748), (2, 19900874), (4, 9950437), (7, 5685964), (14, 2842982), (28, 1421491), (71, 560588), (142, 280294), (284, 140147), (497, 80084), (994, 40042), (1988, 20021)]