1337221629

素因数分解:

$3^4\times {\mathrm{257}}^1\times {\mathrm{64237}}^1$

素因数の和:64506

約数の個数: 20

約数和(自身を含む): 2005381884

約数和(自身を除く): 668160255

約数列:

[1, 3, 9, 27, 81, 257, 771, 2313, 6939, 20817, 64237, 192711, 578133, 1734399, 5203197, 16508909, 49526727, 148580181, 445740543, 1337221629]

約数ペア:

[(1, 1337221629), (3, 445740543), (9, 148580181), (27, 49526727), (81, 16508909), (257, 5203197), (771, 1734399), (2313, 578133), (6939, 192711), (20817, 64237)]