20003721

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{4327}}^1$

素因数の和:4420

約数の個数: 16

約数和(自身を含む): 28253184

約数和(自身を除く): 8249463

約数列:

[1, 3, 23, 67, 69, 201, 1541, 4327, 4623, 12981, 99521, 289909, 298563, 869727, 6667907, 20003721]

約数ペア:

[(1, 20003721), (3, 6667907), (23, 869727), (67, 298563), (69, 289909), (201, 99521), (1541, 12981), (4327, 4623)]