1620243

素因数分解:

$3^4\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:336

約数の個数: 20

約数和(自身を含む): 2459688

約数和(自身を除く): 839445

約数列:

[1, 3, 9, 27, 81, 83, 241, 249, 723, 747, 2169, 2241, 6507, 6723, 19521, 20003, 60009, 180027, 540081, 1620243]

約数ペア:

[(1, 1620243), (3, 540081), (9, 180027), (27, 60009), (81, 20003), (83, 19521), (241, 6723), (249, 6507), (723, 2241), (747, 2169)]