19900874

素因数分解:

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

素因数の和:20101

約数の個数: 16

約数和(自身を含む): 34598016

約数和(自身を除く): 14697142

約数列:

[1, 2, 7, 14, 71, 142, 497, 994, 20021, 40042, 140147, 280294, 1421491, 2842982, 9950437, 19900874]

約数ペア:

[(1, 19900874), (2, 9950437), (7, 2842982), (14, 1421491), (71, 280294), (142, 140147), (497, 40042), (994, 20021)]