20398882

素因数分解:

$2^1\times 7^1\times {\mathrm{1103}}^1\times {\mathrm{1321}}^1$

素因数の和:2433

約数の個数: 16

約数和(自身を含む): 35027712

約数和(自身を除く): 14628830

約数列:

[1, 2, 7, 14, 1103, 1321, 2206, 2642, 7721, 9247, 15442, 18494, 1457063, 2914126, 10199441, 20398882]

約数ペア:

[(1, 20398882), (2, 10199441), (7, 2914126), (14, 1457063), (1103, 18494), (1321, 15442), (2206, 9247), (2642, 7721)]