1280421

素因数分解:

$3^3\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1065

約数の個数: 16

約数和(自身を含む): 1939200

約数和(自身を除く): 658779

約数列:

[1, 3, 9, 27, 47, 141, 423, 1009, 1269, 3027, 9081, 27243, 47423, 142269, 426807, 1280421]

約数ペア:

[(1, 1280421), (3, 426807), (9, 142269), (27, 47423), (47, 27243), (141, 9081), (423, 3027), (1009, 1269)]