21199278

素因数分解:

$2^1\times 3^1\times {\mathrm{1721}}^1\times {\mathrm{2053}}^1$

素因数の和:3779

約数の個数: 16

約数和(自身を含む): 42443856

約数和(自身を除く): 21244578

約数列:

[1, 2, 3, 6, 1721, 2053, 3442, 4106, 5163, 6159, 10326, 12318, 3533213, 7066426, 10599639, 21199278]

約数ペア:

[(1, 21199278), (2, 10599639), (3, 7066426), (6, 3533213), (1721, 12318), (2053, 10326), (3442, 6159), (4106, 5163)]