20407499

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{449}}^1$

素因数の和:650

約数の個数: 16

約数和(自身を含む): 24076800

約数和(自身を除く): 3669301

約数列:

[1, 7, 43, 151, 301, 449, 1057, 3143, 6493, 19307, 45451, 67799, 135149, 474593, 2915357, 20407499]

約数ペア:

[(1, 20407499), (7, 2915357), (43, 474593), (151, 135149), (301, 67799), (449, 45451), (1057, 19307), (3143, 6493)]