20666788

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{5479}}^1$

素因数の和:5547

約数の個数: 24

約数和(自身を含む): 38666880

約数和(自身を除く): 18000092

約数列:

[1, 2, 4, 23, 41, 46, 82, 92, 164, 943, 1886, 3772, 5479, 10958, 21916, 126017, 224639, 252034, 449278, 504068, 898556, 5166697, 10333394, 20666788]

約数ペア:

[(1, 20666788), (2, 10333394), (4, 5166697), (23, 898556), (41, 504068), (46, 449278), (82, 252034), (92, 224639), (164, 126017), (943, 21916), (1886, 10958), (3772, 5479)]