20491278

素因数分解:

$2^1\times 3^1\times {\mathrm{1381}}^1\times {\mathrm{2473}}^1$

素因数の和:3859

約数の個数: 16

約数和(自身を含む): 41028816

約数和(自身を除く): 20537538

約数列:

[1, 2, 3, 6, 1381, 2473, 2762, 4143, 4946, 7419, 8286, 14838, 3415213, 6830426, 10245639, 20491278]

約数ペア:

[(1, 20491278), (2, 10245639), (3, 6830426), (6, 3415213), (1381, 14838), (2473, 8286), (2762, 7419), (4143, 4946)]